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IPV4

198.41.255.255

Record found
Retrieved · 30 Sep 2026, 00:11 UTC1 sourceView JSON
BGP / routing →Reverse DNS →
Click a domain or IP to look it up.
01

Registry record

RDAPhttps://rdap.arin.net/registry/ip/198.41.255.255
Record found
Record ID
NET-198-41-128-0-1
Network name
CLOUDFLARENET
Address range
198.41.128.0 — 198.41.255.255
CIDR blocks
198.41.128.0/17
Network type
DIRECT ALLOCATION
Parent network
NET-198-0-0-0-0
Last changed
2024-09-04T07:55:05-04:00
Registered
2012-10-09T18:19:18-04:00
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

All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse Geofeed: https://api.cloudflare.com/local-ip-ranges.csv

Organizations & contacts

5
Organization / registrant
Cloudflare, Inc.
CLOUD14
Address
101 Townsend Street San Francisco CA 94107 United States
Type
org

Registry · rdap.arin.net

Administrative · Technical
Admin
ADMIN2521-ARIN
Address
101 Townsend Street San Francisco CA 94107 United States
Organization
Cloudflare, Inc.
Type
group
Phone (work, voice)
+1-650-319-8930
Registration Comments
All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse

Registry · rdap.arin.net

Abuse
Abuse
ABUSE2916-ARIN
Address
101 Townsend Street San Francisco CA 94107 United States
Organization
Cloudflare, Inc.
Type
group
Email
abuse@cloudflare.com
Phone (work, voice)
+1-650-319-8930
Registration Comments
All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Unvalidated POC
ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2025-09-04

Registry · rdap.arin.net

Routing · Noc
Cloudflare-NOC
CLOUD146-ARIN
Address
101 Townsend St San Francsico CA 94107 United States
Organization
Cloudflare, Inc
Type
group
Phone (work, voice)
+1-650-319-8930

Registry · rdap.arin.net

Noc
NOC
NOC11962-ARIN
Address
101 Townsend Street San Francisco CA 94107 United States
Organization
Cloudflare, Inc.
Type
group
Phone (work, voice)
+1-650-319-8930
Registration Comments
All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse

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
AS13335
Source
ARIN

Cloudflare, Inc. · 101 Townsend Street, San Francisco, California 94107, US

Routing object details
route: 198.41.128.0/17
descr: Cloudflare, Inc.
descr: 101 Townsend Street, San Francisco, California 94107, US
origin: AS13335
mnt-by: MNT-CLOUD14
notify: rir@cloudflare.com
changed: rir@cloudflare.com 20171005
source: ARIN
Origin
AS13335
Source
ARIN

Cloudflare, Inc. · 101 Townsend Street, San Francisco, California 94107, US

Routing object details
route: 198.41.192.0/18
descr: Cloudflare, Inc.
descr: 101 Townsend Street, San Francisco, California 94107, US
origin: AS13335
mnt-by: MNT-CLOUD14
notify: rir@cloudflare.com
remarks: ---------------
remarks: All Cloudflare abuse reporting can be done via
remarks: https://www.cloudflare.com/abuse
remarks: ---------------
changed: rir@cloudflare.com 20190522
source: ARIN
Origin
AS13335
Source
ARIN

Cloudflare, Inc. · 101 Townsend Street, San Francisco, California 94107, US

Routing object details
route: 198.41.224.0/19
descr: Cloudflare, Inc.
descr: 101 Townsend Street, San Francisco, California 94107, US
origin: AS13335
mnt-by: MNT-CLOUD14
notify: rir@cloudflare.com
remarks: ---------------
remarks: All Cloudflare abuse reporting can be done via
remarks: https://www.cloudflare.com/abuse
remarks: ---------------
changed: rir@cloudflare.com 20190522
source: ARIN
Origin
AS13335
Source
ARIN

Cloudflare, Inc. · 101 Townsend Street, San Francisco, California 94107, US

Routing object details
route: 198.41.252.0/22
descr: Cloudflare, Inc.
descr: 101 Townsend Street, San Francisco, California 94107, US
origin: AS13335
mnt-by: MNT-CLOUD14
notify: rir@cloudflare.com
remarks: ---------------
remarks: All Cloudflare abuse reporting can be done via
remarks: https://www.cloudflare.com/abuse
remarks: ---------------
changed: rir@cloudflare.com 20190621
source: ARIN
Origin
AS132892
Source
ARIN

Cloudflare, Inc. · 101 Townsend Street, San Francisco, California 94107, US

Routing object details
route: 198.41.254.0/23
descr: Cloudflare, Inc.
descr: 101 Townsend Street, San Francisco, California 94107, US
origin: AS132892
mnt-by: MNT-CLOUD14
notify: rir@cloudflare.com
remarks: ---------------
remarks: All Cloudflare abuse reporting can be done via
remarks: https://www.cloudflare.com/abuse
remarks: ---------------
changed: rir@cloudflare.com 20190107
source: ARIN
Origin
AS202623
Source
ARIN

Cloudflare, Inc. · 101 Townsend Street, San Francisco, California 94107, US

Routing object details
route: 198.41.254.0/23
descr: Cloudflare, Inc.
descr: 101 Townsend Street, San Francisco, California 94107, US
origin: AS202623
mnt-by: MNT-CLOUD14
notify: rir@cloudflare.com
remarks: ---------------
remarks: All Cloudflare abuse reporting can be done via
remarks: https://www.cloudflare.com/abuse
remarks: ---------------
changed: rir@cloudflare.com 20190107
source: ARIN
Origin
AS132892
Source
ARIN

Cloudflare, Inc. · 101 Townsend Street, San Francisco, California 94107, US

Routing object details
route: 198.41.255.0/24
descr: Cloudflare, Inc.
descr: 101 Townsend Street, San Francisco, California 94107, US
origin: AS132892
mnt-by: MNT-CLOUD14
notify: rir@cloudflare.com
remarks: ---------------
remarks: All Cloudflare abuse reporting can be done via
remarks: https://www.cloudflare.com/abuse
remarks: ---------------
changed: rir@cloudflare.com 20190117
source: ARIN
Registry · RDAP Original response
https://rdap.arin.net/registry/ip/198.41.255.255
{
    "arin_originas0_originautnums": [],
    "cidr0_cidrs": [
        {
            "v4prefix": "198.41.128.0",
            "length": 17
        }
    ],
    "endAddress": "198.41.255.255",
    "entities": [
        {
            "entities": [
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2026-08-23T22:28:37-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2021-07-01T14:10:58-04:00"
                        }
                    ],
                    "handle": "CLOUD146-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/CLOUD146-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/CLOUD146-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
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                    ],
                    "status": [
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                    ],
                    "vcardArray": [
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                        [
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                                "text",
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                            ],
                            [
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                                {
                                    "label": "101 Townsend St\nSan Francsico\nCA\n94107\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Cloudflare-NOC"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "Cloudflare, Inc"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "noc@cloudflare.com"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-650-319-8930"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2024-09-04T13:14:53-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2011-02-14T19:00:47-05:00"
                        }
                    ],
                    "handle": "ABUSE2916-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/ABUSE2916-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/ABUSE2916-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "remarks": [
                        {
                            "description": [
                                "All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse"
                            ],
                            "title": "Registration Comments"
                        },
                        {
                            "description": [
                                "ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2025-09-04"
                            ],
                            "title": "Unvalidated POC"
                        }
                    ],
                    "roles": [
                        "abuse"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "101 Townsend Street\nSan Francisco\nCA\n94107\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Abuse"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "Cloudflare, Inc."
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "abuse@cloudflare.com"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-650-319-8930"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2026-06-12T04:48:05-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2011-04-19T16:11:36-04:00"
                        }
                    ],
                    "handle": "ADMIN2521-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/ADMIN2521-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/ADMIN2521-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "remarks": [
                        {
                            "description": [
                                "All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse"
                            ],
                            "title": "Registration Comments"
                        }
                    ],
                    "roles": [
                        "administrative",
                        "technical"
                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "101 Townsend Street\nSan Francisco\nCA\n94107\nUnited States"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Admin"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "Cloudflare, Inc."
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "rir@cloudflare.com"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-650-319-8930"
                            ]
                        ]
                    ]
                }
            ],
            "events": [
                {
                    "eventAction": "last changed",
                    "eventDate": "2024-11-25T11:09:46-05:00"
                },
                {
                    "eventAction": "registration",
                    "eventDate": "2010-07-09T14:10:42-04:00"
                }
            ],
            "handle": "CLOUD14",
            "links": [
                {
                    "href": "https://rdap.arin.net/registry/entity/CLOUD14",
                    "rel": "self",
                    "type": "application/rdap+json",
                    "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
                },
                {
                    "href": "https://whois.arin.net/rest/org/CLOUD14",
                    "rel": "alternate",
                    "type": "application/xml",
                    "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
                }
            ],
            "objectClassName": "entity",
            "port43": "whois.arin.net",
            "roles": [
                "registrant"
            ],
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Cloudflare, Inc."
                    ],
                    [
                        "adr",
                        {
                            "label": "101 Townsend Street\nSan Francisco\nCA\n94107\nUnited States"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "org"
                    ]
                ]
            ]
        },
        {
            "events": [
                {
                    "eventAction": "last changed",
                    "eventDate": "2024-09-04T13:14:53-04:00"
                },
                {
                    "eventAction": "registration",
                    "eventDate": "2011-02-14T19:00:47-05:00"
                }
            ],
            "handle": "ABUSE2916-ARIN",
            "links": [
                {
                    "href": "https://rdap.arin.net/registry/entity/ABUSE2916-ARIN",
                    "rel": "self",
                    "type": "application/rdap+json",
                    "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
                },
                {
                    "href": "https://whois.arin.net/rest/poc/ABUSE2916-ARIN",
                    "rel": "alternate",
                    "type": "application/xml",
                    "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
                }
            ],
            "objectClassName": "entity",
            "port43": "whois.arin.net",
            "remarks": [
                {
                    "description": [
                        "All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse"
                    ],
                    "title": "Registration Comments"
                },
                {
                    "description": [
                        "ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2025-09-04"
                    ],
                    "title": "Unvalidated POC"
                }
            ],
            "roles": [
                "abuse"
            ],
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
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                        "text",
                        "4.0"
                    ],
                    [
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                        {
                            "label": "101 Townsend Street\nSan Francisco\nCA\n94107\nUnited States"
                        },
                        "text",
                        [
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                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Abuse"
                    ],
                    [
                        "org",
                        [],
                        "text",
                        "Cloudflare, Inc."
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "abuse@cloudflare.com"
                    ],
                    [
                        "tel",
                        {
                            "type": [
                                "work",
                                "voice"
                            ]
                        },
                        "text",
                        "+1-650-319-8930"
                    ]
                ]
            ]
        },
        {
            "events": [
                {
                    "eventAction": "last changed",
                    "eventDate": "2026-06-12T04:48:05-04:00"
                },
                {
                    "eventAction": "registration",
                    "eventDate": "2011-04-19T16:11:36-04:00"
                }
            ],
            "handle": "ADMIN2521-ARIN",
            "links": [
                {
                    "href": "https://rdap.arin.net/registry/entity/ADMIN2521-ARIN",
                    "rel": "self",
                    "type": "application/rdap+json",
                    "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
                },
                {
                    "href": "https://whois.arin.net/rest/poc/ADMIN2521-ARIN",
                    "rel": "alternate",
                    "type": "application/xml",
                    "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
                }
            ],
            "objectClassName": "entity",
            "port43": "whois.arin.net",
            "remarks": [
                {
                    "description": [
                        "All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse"
                    ],
                    "title": "Registration Comments"
                }
            ],
            "roles": [
                "technical"
            ],
            "status": [
                "validated"
            ],
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "adr",
                        {
                            "label": "101 Townsend Street\nSan Francisco\nCA\n94107\nUnited States"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Admin"
                    ],
                    [
                        "org",
                        [],
                        "text",
                        "Cloudflare, Inc."
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "rir@cloudflare.com"
                    ],
                    [
                        "tel",
                        {
                            "type": [
                                "work",
                                "voice"
                            ]
                        },
                        "text",
                        "+1-650-319-8930"
                    ]
                ]
            ]
        },
        {
            "events": [
                {
                    "eventAction": "last changed",
                    "eventDate": "2026-04-30T05:15:18-04:00"
                },
                {
                    "eventAction": "registration",
                    "eventDate": "2011-04-19T16:25:31-04:00"
                }
            ],
            "handle": "NOC11962-ARIN",
            "links": [
                {
                    "href": "https://rdap.arin.net/registry/entity/NOC11962-ARIN",
                    "rel": "self",
                    "type": "application/rdap+json",
                    "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
                },
                {
                    "href": "https://whois.arin.net/rest/poc/NOC11962-ARIN",
                    "rel": "alternate",
                    "type": "application/xml",
                    "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
                }
            ],
            "objectClassName": "entity",
            "port43": "whois.arin.net",
            "remarks": [
                {
                    "description": [
                        "All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse"
                    ],
                    "title": "Registration Comments"
                }
            ],
            "roles": [
                "noc"
            ],
            "status": [
                "validated"
            ],
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "adr",
                        {
                            "label": "101 Townsend Street\nSan Francisco\nCA\n94107\nUnited States"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "NOC"
                    ],
                    [
                        "org",
                        [],
                        "text",
                        "Cloudflare, Inc."
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "noc@cloudflare.com"
                    ],
                    [
                        "tel",
                        {
                            "type": [
                                "work",
                                "voice"
                            ]
                        },
                        "text",
                        "+1-650-319-8930"
                    ]
                ]
            ]
        }
    ],
    "events": [
        {
            "eventAction": "last changed",
            "eventDate": "2024-09-04T07:55:05-04:00"
        },
        {
            "eventAction": "registration",
            "eventDate": "2012-10-09T18:19:18-04:00"
        }
    ],
    "handle": "NET-198-41-128-0-1",
    "ipVersion": "v4",
    "links": [
        {
            "href": "https://rdap.arin.net/registry/ip/198.41.128.0",
            "rel": "self",
            "type": "application/rdap+json",
            "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
        },
        {
            "href": "https://whois.arin.net/rest/net/NET-198-41-128-0-1",
            "rel": "alternate",
            "type": "application/xml",
            "value": "https://rdap.arin.net/registry/ip/198.41.255.255"
        }
    ],
    "name": "CLOUDFLARENET",
    "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/198.41.255.255"
                }
            ],
            "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/198.41.255.255"
                }
            ],
            "title": "Whois Inaccuracy Reporting"
        },
        {
            "description": [
                "Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
            ],
            "title": "Copyright Notice"
        }
    ],
    "objectClassName": "ip network",
    "parentHandle": "NET-198-0-0-0-0",
    "port43": "whois.arin.net",
    "rdapConformance": [
        "nro_rdap_profile_0",
        "rdap_level_0",
        "cidr0",
        "arin_originas0"
    ],
    "remarks": [
        {
            "description": [
                "All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse",
                "Geofeed: https://api.cloudflare.com/local-ip-ranges.csv"
            ],
            "title": "Registration Comments"
        }
    ],
    "startAddress": "198.41.128.0",
    "status": [
        "active"
    ],
    "type": "DIRECT ALLOCATION"
}