THE INTERNET, ON RECORD

Domain, IP & ASN lookup.

Explore domains, TLDs, networks and the organizations behind them.

IPV4

158.73.0.0/16

Record found
Retrieved · 25 Oct 2026, 20:11 UTC1 sourceView JSON
Click a domain or IP to look it up.
01

Registry record

RDAPhttps://rdap.arin.net/registry/ip/158.73.0.0/16
Record found
Record ID
NET-158-73-0-0-1
Network name
CMSNET
Address range
158.73.0.0 — 158.73.255.255
CIDR blocks
158.73.0.0/16
Network type
DIRECT ALLOCATION
Parent network
NET-158-0-0-0-0
Last changed
2021-12-14T20:28:27-05:00
Registered
1992-02-15T00:00:00-05:00
Status
active
Notices & terms 4

Terms of Service

By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use https://www.arin.net/resources/registry/whois/tou/

Whois Inaccuracy Reporting

If you see inaccuracies in the results, please visit: https://www.arin.net/resources/registry/whois/inaccuracy_reporting/

Copyright Notice

Copyright 1997-2026, American Registry for Internet Numbers, Ltd.

Registration Comments

http://www.cms.hhs.gov/

Organizations & contacts

10
Organization / registrant
U.S. Dept. of Health and Human Services
UDHHS
Address
HHS/ASA/OCIO 5600 Fishers Lane Rockville MD 20852 United States
Type
org

Registry · rdap.arin.net

Noc · Administrative · Technical · Abuse
Duane Moxley
MOXLE3-ARIN
Address
5600 Fisher Lane Rockville MD 20852 United States
Name
Moxley Duane
Type
individual
Email
duane.moxley@hhs.gov
Phone (work, voice)
+1-202-770-5350

Registry · rdap.arin.net

Technical
Steven Voyta
VOYTA-ARIN
Address
5600 Fisher Lane Rockville MD 20850 United States
Name
Voyta Steven
Type
individual
Email
steven.voyta@hhs.gov
Phone (work, voice)
+1-240-506-1441
Unvalidated POC
ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2026-02-11

Registry · rdap.arin.net

Technical
Tim Miller
MILLE3252-ARIN
Address
701 5th Ave. RM 1544 Seattle WA 98104 United States
Name
Miller Tim
Type
individual
Email
timothy.miller@hhs.gov
Phone (work, voice)
+1-206-615-2450
Phone (work, cell)
+1-202-821-6838

Registry · rdap.arin.net

Technical
Program Support Center
PSC110-ARIN
Address
Program Support Cente 5600 Fishers Lane Rockville MD 20857 United States
Organization
U.S. Department of Health and Human Services (HHS)
Type
group
Email
william.verna@psc.hhs.gov
Email
bill.flowers@hhs.gov
Email
pschostmaster@ees.hhs.gov
Email
hostmaster@psc.hhs.gov
Phone (work, voice)
+1-202-309-3084
Phone (work, voice)
+1-202-774-2125
Registration Comments
http://www.hhs.gov

Registry · rdap.arin.net

Technical
William Gass
GASSW-ARIN
Address
7500 Security Blvd Baltimore MD 21244 United States
Name
Gass William
Type
individual
Email
william.gass@cms.hhs.gov
Phone (work, voice)
+1-410-786-3653
Phone (work, cell)
+1-410-916-6583

Registry · rdap.arin.net

Technical
Mike Roxas
ROXAS9-ARIN
Address
7500 Security Blvd Baltimore MD 21244 United States
Name
Roxas Mike
Type
individual
Email
michael.roxas@cms.hhs.gov
Phone (work, voice)
+1-410-786-6526
Phone (work, cell)
+1-443-821-4234

Registry · rdap.arin.net

Abuse
Abuse
ABUSE5037-ARIN
Address
5600 Fishers Lane Rockville MD 20852 United States
Organization
Department of Health & Human Services
Type
group
Email
abuse@hhs.gov
Phone (work, voice)
+1-301-443-2893
Unvalidated POC
ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2025-05-07

Registry · rdap.arin.net

Abuse
CMS IT Service Desk
CISD-ARIN
Address
7500 Security Blvd Baltimore MD 21244 United States
Organization
Centers for Medicare & Medicaid Services
Type
group
Email
cms_it_service_desk@cms.hhs.gov
Phone (work, voice)
+1-410-786-2580
Unvalidated POC
ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2022-08-17

Registry · rdap.arin.net

Noc
HHS Network Operations Center
HNOC10-ARIN
Address
5600 Fishers Lane Rockville MD 20852 United States
Organization
Department of Health & Human Services
Type
group
Email
HHS_ITIO_NOC@HHS.GOV
Phone (work, voice)
+1-301-443-2893
Unvalidated POC
ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2019-03-26

Registry · rdap.arin.net

Route / route6 records IRR

rr.arin.net:43

BGP observations →

Exact and covering objects from ARIN. These are registered routing policies; they do not confirm a live announcement.

No matching route objects were returned by this registry. Records may exist in another IRR.

Registry · RDAP Original response
https://rdap.arin.net/registry/ip/158.73.0.0/16
{
    "arin_originas0_originautnums": [],
    "cidr0_cidrs": [
        {
            "v4prefix": "158.73.0.0",
            "length": 16
        }
    ],
    "endAddress": "158.73.255.255",
    "entities": [
        {
            "entities": [
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2025-02-11T08:53:35-05:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2022-05-06T00:47:37-04:00"
                        }
                    ],
                    "handle": "VOYTA-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/VOYTA-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/VOYTA-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "remarks": [
                        {
                            "description": [
                                "ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2026-02-11"
                            ],
                            "title": "Unvalidated POC"
                        }
                    ],
                    "roles": [
                        "technical"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "5600 Fisher Lane\nRockville\nMD\n20850\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Steven Voyta"
                            ],
                            [
                                "n",
                                [],
                                "text",
                                [
                                    "Voyta",
                                    "Steven",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "individual"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "steven.voyta@hhs.gov"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-240-506-1441"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2024-05-07T14:21:17-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2015-03-23T12:31:18-04:00"
                        }
                    ],
                    "handle": "ABUSE5037-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/ABUSE5037-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/ABUSE5037-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "remarks": [
                        {
                            "description": [
                                "ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2025-05-07"
                            ],
                            "title": "Unvalidated POC"
                        }
                    ],
                    "roles": [
                        "abuse"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "5600 Fishers Lane\nRockville\nMD\n20852\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Abuse"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "Department of Health & Human Services"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "abuse@hhs.gov"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-301-443-2893"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2018-03-26T07:02:29-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2015-03-27T09:58:52-04:00"
                        }
                    ],
                    "handle": "HNOC10-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/HNOC10-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/HNOC10-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "remarks": [
                        {
                            "description": [
                                "ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2019-03-26"
                            ],
                            "title": "Unvalidated POC"
                        }
                    ],
                    "roles": [
                        "noc"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "5600 Fishers Lane\nRockville\nMD\n20852\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "HHS Network Operations Center"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "Department of Health & Human Services"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "HHS_ITIO_NOC@HHS.GOV"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-301-443-2893"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2025-12-30T17:11:26-05:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2025-12-30T17:11:26-05:00"
                        }
                    ],
                    "handle": "MILLE3252-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/MILLE3252-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/MILLE3252-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
                        "technical"
                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "701 5th Ave.\nRM 1544\nSeattle\nWA\n98104\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Tim Miller"
                            ],
                            [
                                "n",
                                [],
                                "text",
                                [
                                    "Miller",
                                    "Tim",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "individual"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "timothy.miller@hhs.gov"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-206-615-2450"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "cell"
                                    ]
                                },
                                "text",
                                "+1-202-821-6838"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2026-09-25T07:57:42-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2023-12-13T13:34:08-05:00"
                        }
                    ],
                    "handle": "MOXLE3-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/MOXLE3-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/MOXLE3-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
                        "noc",
                        "administrative",
                        "technical",
                        "abuse"
                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "5600 Fisher Lane\n\nRockville\nMD\n20852\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Duane Moxley"
                            ],
                            [
                                "n",
                                [],
                                "text",
                                [
                                    "Moxley",
                                    "Duane",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "individual"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "duane.moxley@hhs.gov"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-202-770-5350"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2026-03-25T08:51:48-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2010-04-14T14:18:41-04:00"
                        }
                    ],
                    "handle": "PSC110-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/PSC110-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/PSC110-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "remarks": [
                        {
                            "description": [
                                "http://www.hhs.gov"
                            ],
                            "title": "Registration Comments"
                        }
                    ],
                    "roles": [
                        "technical"
                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "Program Support Cente\n5600 Fishers Lane\nRockville\nMD\n20857\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Program Support Center"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "U.S. Department of Health and Human Services (HHS)"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "william.verna@psc.hhs.gov"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "bill.flowers@hhs.gov"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "pschostmaster@ees.hhs.gov"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "hostmaster@psc.hhs.gov"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-202-309-3084"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-202-774-2125"
                            ]
                        ]
                    ]
                }
            ],
            "events": [
                {
                    "eventAction": "last changed",
                    "eventDate": "2025-12-31T07:49:20-05:00"
                },
                {
                    "eventAction": "registration",
                    "eventDate": "1992-02-15T00:00:00-05:00"
                }
            ],
            "handle": "UDHHS",
            "links": [
                {
                    "href": "https://rdap.arin.net/registry/entity/UDHHS",
                    "rel": "self",
                    "type": "application/rdap+json",
                    "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                },
                {
                    "href": "https://whois.arin.net/rest/org/UDHHS",
                    "rel": "alternate",
                    "type": "application/xml",
                    "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                }
            ],
            "objectClassName": "entity",
            "port43": "whois.arin.net",
            "roles": [
                "registrant"
            ],
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "U.S. Dept. of Health and Human Services"
                    ],
                    [
                        "adr",
                        {
                            "label": "HHS/ASA/OCIO\r\n5600 Fishers Lane\nRockville\nMD\n20852\nUnited States"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "org"
                    ]
                ]
            ]
        },
        {
            "events": [
                {
                    "eventAction": "last changed",
                    "eventDate": "2025-12-04T11:58:30-05:00"
                },
                {
                    "eventAction": "registration",
                    "eventDate": "2021-08-16T10:49:23-04:00"
                }
            ],
            "handle": "GASSW-ARIN",
            "links": [
                {
                    "href": "https://rdap.arin.net/registry/entity/GASSW-ARIN",
                    "rel": "self",
                    "type": "application/rdap+json",
                    "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                },
                {
                    "href": "https://whois.arin.net/rest/poc/GASSW-ARIN",
                    "rel": "alternate",
                    "type": "application/xml",
                    "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                }
            ],
            "objectClassName": "entity",
            "port43": "whois.arin.net",
            "roles": [
                "technical"
            ],
            "status": [
                "validated"
            ],
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "adr",
                        {
                            "label": "7500 Security Blvd\nBaltimore\nMD\n21244\nUnited States"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "William Gass"
                    ],
                    [
                        "n",
                        [],
                        "text",
                        [
                            "Gass",
                            "William",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "individual"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "william.gass@cms.hhs.gov"
                    ],
                    [
                        "tel",
                        {
                            "type": [
                                "work",
                                "voice"
                            ]
                        },
                        "text",
                        "+1-410-786-3653"
                    ],
                    [
                        "tel",
                        {
                            "type": [
                                "work",
                                "cell"
                            ]
                        },
                        "text",
                        "+1-410-916-6583"
                    ]
                ]
            ]
        },
        {
            "events": [
                {
                    "eventAction": "last changed",
                    "eventDate": "2025-04-02T06:23:29-04:00"
                },
                {
                    "eventAction": "registration",
                    "eventDate": "2021-08-16T10:56:23-04:00"
                }
            ],
            "handle": "ROXAS9-ARIN",
            "links": [
                {
                    "href": "https://rdap.arin.net/registry/entity/ROXAS9-ARIN",
                    "rel": "self",
                    "type": "application/rdap+json",
                    "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                },
                {
                    "href": "https://whois.arin.net/rest/poc/ROXAS9-ARIN",
                    "rel": "alternate",
                    "type": "application/xml",
                    "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                }
            ],
            "objectClassName": "entity",
            "port43": "whois.arin.net",
            "roles": [
                "technical"
            ],
            "status": [
                "validated"
            ],
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "adr",
                        {
                            "label": "7500 Security Blvd\nBaltimore\nMD\n21244\nUnited States"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Mike Roxas"
                    ],
                    [
                        "n",
                        [],
                        "text",
                        [
                            "Roxas",
                            "Mike",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "individual"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "michael.roxas@cms.hhs.gov"
                    ],
                    [
                        "tel",
                        {
                            "type": [
                                "work",
                                "voice"
                            ]
                        },
                        "text",
                        "+1-410-786-6526"
                    ],
                    [
                        "tel",
                        {
                            "type": [
                                "work",
                                "cell"
                            ]
                        },
                        "text",
                        "+1-443-821-4234"
                    ]
                ]
            ]
        },
        {
            "events": [
                {
                    "eventAction": "last changed",
                    "eventDate": "2021-08-17T12:24:43-04:00"
                },
                {
                    "eventAction": "registration",
                    "eventDate": "2021-08-17T12:24:43-04:00"
                }
            ],
            "handle": "CISD-ARIN",
            "links": [
                {
                    "href": "https://rdap.arin.net/registry/entity/CISD-ARIN",
                    "rel": "self",
                    "type": "application/rdap+json",
                    "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                },
                {
                    "href": "https://whois.arin.net/rest/poc/CISD-ARIN",
                    "rel": "alternate",
                    "type": "application/xml",
                    "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                }
            ],
            "objectClassName": "entity",
            "port43": "whois.arin.net",
            "remarks": [
                {
                    "description": [
                        "ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2022-08-17"
                    ],
                    "title": "Unvalidated POC"
                }
            ],
            "roles": [
                "abuse"
            ],
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "adr",
                        {
                            "label": "7500 Security Blvd\nBaltimore\nMD\n21244\nUnited States"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "CMS IT Service Desk"
                    ],
                    [
                        "org",
                        [],
                        "text",
                        "Centers for Medicare & Medicaid Services"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "cms_it_service_desk@cms.hhs.gov"
                    ],
                    [
                        "tel",
                        {
                            "type": [
                                "work",
                                "voice"
                            ]
                        },
                        "text",
                        "+1-410-786-2580"
                    ]
                ]
            ]
        }
    ],
    "events": [
        {
            "eventAction": "last changed",
            "eventDate": "2021-12-14T20:28:27-05:00"
        },
        {
            "eventAction": "registration",
            "eventDate": "1992-02-15T00:00:00-05:00"
        }
    ],
    "handle": "NET-158-73-0-0-1",
    "ipVersion": "v4",
    "links": [
        {
            "href": "https://rdap.arin.net/registry/ip/158.73.0.0",
            "rel": "self",
            "type": "application/rdap+json",
            "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
        },
        {
            "href": "https://whois.arin.net/rest/net/NET-158-73-0-0-1",
            "rel": "alternate",
            "type": "application/xml",
            "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
        }
    ],
    "name": "CMSNET",
    "notices": [
        {
            "description": [
                "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
            ],
            "links": [
                {
                    "href": "https://www.arin.net/resources/registry/whois/tou/",
                    "rel": "terms-of-service",
                    "type": "text/html",
                    "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                }
            ],
            "title": "Terms of Service"
        },
        {
            "description": [
                "If you see inaccuracies in the results, please visit: "
            ],
            "links": [
                {
                    "href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
                    "rel": "inaccuracy-report",
                    "type": "text/html",
                    "value": "https://rdap.arin.net/registry/ip/158.73.0.0/16"
                }
            ],
            "title": "Whois Inaccuracy Reporting"
        },
        {
            "description": [
                "Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
            ],
            "title": "Copyright Notice"
        }
    ],
    "objectClassName": "ip network",
    "parentHandle": "NET-158-0-0-0-0",
    "port43": "whois.arin.net",
    "rdapConformance": [
        "nro_rdap_profile_0",
        "rdap_level_0",
        "cidr0",
        "arin_originas0"
    ],
    "remarks": [
        {
            "description": [
                "http://www.cms.hhs.gov/"
            ],
            "title": "Registration Comments"
        }
    ],
    "startAddress": "158.73.0.0",
    "status": [
        "active"
    ],
    "type": "DIRECT ALLOCATION"
}