THE INTERNET, ON RECORD

Domain, IP & ASN lookup.

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

IPV4

72.244.38.0/24

Record found
Retrieved · 21 Sep 2026, 20:31 UTC1 sourceView JSON
Click a domain or IP to look it up.
01

Registry record

RDAPhttps://rdap.arin.net/registry/ip/72.244.38.0/24
Record found
Record ID
NET-72-244-38-0-2
Network name
GTT-CUSTOMER
Address range
72.244.38.072.244.38.255
CIDR blocks
72.244.38.0/24
Network type
ALLOCATION
Parent network
NET-72-244-38-0-1
Last changed
2026-07-31T03:38:00-04:00
Registered
2026-07-31T03:38:00-04:00
Status
active
Notices & terms 3

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.

Organizations & contacts

7
Organization / registrant
IPNetZone
IPNET-1
Address
7900 Tysons One Place McLean VA 22102 United States
Type
org
Registration Comments
http://www.ipnetzone.com

Registry · rdap.arin.net

Technical · Administrative
AS3257 Netguard
AS3251-ARIN
Address
Frankfurter Strasse 227 Neu-Isenburg 63263 Germany
Organization
GTT
Type
group
Email
netguard@gtt.net
Phone (work, voice)
+49 69 48007422

Registry · rdap.arin.net

Technical
GTT IPAM Team
GIT5-ARIN
Address
4201 Wilson Blvd. Suite 504 North Tower Arlington VA 22203 United States
Organization
GTT
Type
group
Email
netguard@gtt.net
Phone (work, voice)
+1-703-442-5500

Registry · rdap.arin.net

Abuse
Abuse Handle
ABUSE2254-ARIN
Address
1270 Broadway Suite 708 New York NY 10001 United States
Organization
IPNetZone Communications Inc.
Type
group
Email
ipabuse@unsi.net
Phone (work, voice)
+1-646-254-6800
Unvalidated POC
ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2015-01-30

Registry · rdap.arin.net

Abuse
GTT Abuse Department
GAD46-ARIN
Address
4201 Wilson Blvd. Suite 504 North Tower Arlington VA 22203 United States
Organization
GTT Communications, Inc.
Type
group
Email
abuse@gtt.net
Phone (work, voice)
+1-703-442-5500
Fax
+1-703-442-5501

Registry · rdap.arin.net

Noc
Network Operations Center
NOC11073-ARIN
Address
38-31 Crescent Street Long Island City NY 11101 United States
Organization
IPNetZone Communications
Type
group
Email
netops@ipnetzone.com
Phone (work, voice)
+1-646-254-6800
Unvalidated POC
ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2014-11-18

Registry · rdap.arin.net

Noc
GTT Network Operations Center
GNOC16-ARIN
Address
4201 Wilson Blvd. Suite 504 North Tower Arlington VA 22203 United States
Organization
GTT Communications, Inc.
Type
group
Email
noc@gtt.net
Phone (work, voice)
+1-703-442-5500

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.

Origin
AS3257
Source
ARIN

GTT

Routing object details
route: 72.244.0.0/15
origin: AS3257
descr: GTT
admin-c: AS3251-ARIN
tech-c: AS3251-ARIN
tech-c: GIT5-ARIN
tech-c: GLD5-ARIN
mnt-by: MNT-GAL-104
created: 2025-05-07T14:16:13Z
last-modified: 2025-05-07T14:16:13Z
source: ARIN
Origin
AS834
Source
ARIN

GTT Americas, LLC

Routing object details
route: 72.244.38.0/24
origin: AS834
descr: GTT Americas, LLC
admin-c: AS3251-ARIN
tech-c: AS3251-ARIN
tech-c: GIT5-ARIN
tech-c: GLD5-ARIN
mnt-by: MNT-GAL-104
remarks: This object is automatically managed by ARIN
created: 2025-11-18T13:47:18Z
last-modified: 2025-11-18T13:47:18Z
source: ARIN
Origin
AS3257
Source
ARIN

GTT Americas, LLC

Routing object details
route: 72.244.38.0/24
origin: AS3257
descr: GTT Americas, LLC
admin-c: AS3251-ARIN
tech-c: AS3251-ARIN
tech-c: GIT5-ARIN
tech-c: GLD5-ARIN
mnt-by: MNT-GAL-104
remarks: This object is automatically managed by ARIN
created: 2026-07-31T09:51:15Z
last-modified: 2026-07-31T09:51:15Z
source: ARIN
Registry · RDAP Original response
https://rdap.arin.net/registry/ip/72.244.38.0/24
{
    "arin_originas0_originautnums": [],
    "cidr0_cidrs": [
        {
            "v4prefix": "72.244.38.0",
            "length": 24
        }
    ],
    "endAddress": "72.244.38.255",
    "entities": [
        {
            "entities": [
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2014-01-30T22:57:58-05:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2009-04-13T17:48:13-04:00"
                        }
                    ],
                    "handle": "ABUSE2254-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/ABUSE2254-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/ABUSE2254-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
                        }
                    ],
                    "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 2015-01-30"
                            ],
                            "title": "Unvalidated POC"
                        }
                    ],
                    "roles": [
                        "abuse"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "1270 Broadway\r\nSuite 708\nNew York\nNY\n10001\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Abuse Handle"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "IPNetZone Communications Inc."
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "ipabuse@unsi.net"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-646-254-6800"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2026-07-14T11:04:14-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2025-02-17T08:39:48-05:00"
                        }
                    ],
                    "handle": "GIT5-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/GIT5-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/GIT5-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
                        "technical"
                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "4201 Wilson Blvd.\nSuite 504 North Tower\nArlington\nVA\n22203\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "GTT IPAM Team"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "GTT"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "netguard@gtt.net"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-703-442-5500"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2013-11-18T09:39:39-05:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2009-07-15T07:18:03-04:00"
                        }
                    ],
                    "handle": "NOC11073-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/NOC11073-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/NOC11073-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
                        }
                    ],
                    "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 2014-11-18"
                            ],
                            "title": "Unvalidated POC"
                        }
                    ],
                    "roles": [
                        "noc"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "38-31 Crescent Street\nLong Island City\nNY\n11101\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Network Operations Center"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "IPNetZone Communications"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "netops@ipnetzone.com"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-646-254-6800"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2026-07-17T05:33:35-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2014-04-16T11:40:19-04:00"
                        }
                    ],
                    "handle": "GAD46-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/GAD46-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/GAD46-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
                        "abuse"
                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "4201 Wilson Blvd.\nSuite 504 North Tower\nArlington\nVA\n22203\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "GTT Abuse Department"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "GTT Communications, Inc."
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "abuse@gtt.net"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-703-442-5500"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "fax"
                                    ]
                                },
                                "text",
                                "+1-703-442-5501"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2026-01-28T09:12:55-05:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2009-07-03T05:24:02-04:00"
                        }
                    ],
                    "handle": "AS3251-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/AS3251-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/AS3251-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
                        "technical",
                        "administrative"
                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "Frankfurter Strasse 227\nNeu-Isenburg\n\n63263\nGermany"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "AS3257 Netguard"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "GTT"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "netguard@gtt.net"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+49 69 48007422"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2026-07-17T05:33:11-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2014-04-16T11:47:29-04:00"
                        }
                    ],
                    "handle": "GNOC16-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/GNOC16-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/GNOC16-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
                        "noc"
                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "4201 Wilson Blvd.\nSuite 504 North Tower\nArlington\nVA\n22203\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "GTT Network Operations Center"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "GTT Communications, Inc."
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "noc@gtt.net"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-703-442-5500"
                            ]
                        ]
                    ]
                }
            ],
            "events": [
                {
                    "eventAction": "last changed",
                    "eventDate": "2025-08-14T02:37:44-04:00"
                },
                {
                    "eventAction": "registration",
                    "eventDate": "2009-02-02T12:35:22-05:00"
                }
            ],
            "handle": "IPNET-1",
            "links": [
                {
                    "href": "https://rdap.arin.net/registry/entity/IPNET-1",
                    "rel": "self",
                    "type": "application/rdap+json",
                    "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
                },
                {
                    "href": "https://whois.arin.net/rest/org/IPNET-1",
                    "rel": "alternate",
                    "type": "application/xml",
                    "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
                }
            ],
            "objectClassName": "entity",
            "port43": "whois.arin.net",
            "remarks": [
                {
                    "description": [
                        "http://www.ipnetzone.com"
                    ],
                    "title": "Registration Comments"
                }
            ],
            "roles": [
                "registrant"
            ],
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "IPNetZone"
                    ],
                    [
                        "adr",
                        {
                            "label": "7900 Tysons One Place\nMcLean\nVA\n22102\nUnited States"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "org"
                    ]
                ]
            ]
        }
    ],
    "events": [
        {
            "eventAction": "last changed",
            "eventDate": "2026-07-31T03:38:00-04:00"
        },
        {
            "eventAction": "registration",
            "eventDate": "2026-07-31T03:38:00-04:00"
        }
    ],
    "handle": "NET-72-244-38-0-2",
    "ipVersion": "v4",
    "links": [
        {
            "href": "https://rdap.arin.net/registry/ip/72.244.38.0",
            "rel": "self",
            "type": "application/rdap+json",
            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
        },
        {
            "href": "https://whois.arin.net/rest/net/NET-72-244-38-0-2",
            "rel": "alternate",
            "type": "application/xml",
            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
        },
        {
            "href": "https://rdap.arin.net/registry/ip/72.244.0.0/15",
            "rel": "up",
            "type": "application/rdap+json",
            "value": "https://rdap.arin.net/registry/ip/72.244.38.0/24"
        }
    ],
    "name": "GTT-CUSTOMER",
    "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/72.244.38.0/24"
                }
            ],
            "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/72.244.38.0/24"
                }
            ],
            "title": "Whois Inaccuracy Reporting"
        },
        {
            "description": [
                "Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
            ],
            "title": "Copyright Notice"
        }
    ],
    "objectClassName": "ip network",
    "parentHandle": "NET-72-244-38-0-1",
    "port43": "whois.arin.net",
    "rdapConformance": [
        "nro_rdap_profile_0",
        "rdap_level_0",
        "cidr0",
        "arin_originas0"
    ],
    "startAddress": "72.244.38.0",
    "status": [
        "active"
    ],
    "type": "ALLOCATION"
}