WHOIS lookup
Look up a domain, an IPv4 or IPv6 address or an AS number (ASN). For a domain: who registered it, which registrar holds it, when it expires and what its status codes mean. For an address or ASN: which network it belongs to, who holds it and where to report abuse. Asked over RDAP and classic WHOIS, of the registry and then the registrar.
140.82.121.4
IP addressHeld by GitHub, Inc.2 requests in 0.7 s2026-11-09 05:12:40 UTCRegistered
Network
| Range | 140.82.112.0 – 140.82.127.255 |
|---|---|
| CIDR | 140.82.112.0/20 |
| Name | GITHU |
| Held by | GitHub, Inc. GITHU |
| Country | US |
| Type | DIRECT ALLOCATION |
| Handle | NET-140-82-112-0-1 · part of NET-140-0-0-0-0 |
| Registered | · 8 years, 6 months ago |
| Last changed | · 4 years, 10 months ago |
| Status | active |
| Report abuse | noc@github.com · +1-415-857-5430 |
| Registry | ARIN |
Reverse DNS and more: DNS lookup for 140.82.121.4.
WHOIS
The raw replies over port 43, as the whois command shows them.
ARIN whois.arin.net
# # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. # NetRange: 140.82.112.0 - 140.82.127.255 CIDR: 140.82.112.0/20 NetName: GITHU NetHandle: NET-140-82-112-0-1 Parent: NET140 (NET-140-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: GitHub, Inc. (GITHU) RegDate: 2018-04-25 Updated: 2021-12-14 Ref: https://rdap.arin.net/registry/ip/140.82.112.0 OrgName: GitHub, Inc. OrgId: GITHU Address: 88 Colin P Kelly Jr Street City: San Francisco StateProv: CA PostalCode: 94107 Country: US RegDate: 2012-10-22 Updated: 2024-11-25 Comment: https://github.com Comment: Please contact us directly for matters pertaining to abuse. Comment: Urgent matters including DDoS are handled 24x7. Ref: https://rdap.arin.net/registry/entity/GITHU OrgNOCHandle: GITHU-ARIN OrgNOCName: GitHub Ops OrgNOCPhone: +1-415-735-4488 OrgNOCEmail: hostmaster@github.com OrgNOCRef: https://rdap.arin.net/registry/entity/GITHU-ARIN OrgAbuseHandle: GITHU1-ARIN OrgAbuseName: GitHub Abuse OrgAbusePhone: +1-415-857-5430 OrgAbuseEmail: noc@github.com OrgAbuseRef: https://rdap.arin.net/registry/entity/GITHU1-ARIN OrgTechHandle: GITHU-ARIN OrgTechName: GitHub Ops OrgTechPhone: +1-415-735-4488 OrgTechEmail: hostmaster@github.com OrgTechRef: https://rdap.arin.net/registry/entity/GITHU-ARIN # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. #
RDAP
The JSON replies WHOIS is being replaced by.
ARIN https://rdap.arin.net/registry/ip/140.82.121.4
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "140.82.112.0",
"length": 20
}
],
"endAddress": "140.82.127.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-21T10:09:18-04:00"
},
{
"eventAction": "registration",
"eventDate": "2012-10-22T15:41:49-04:00"
}
],
"handle": "GITHU-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/GITHU-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/140.82.121.4"
},
{
"href": "https://whois.arin.net/rest/poc/GITHU-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/140.82.121.4"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"GitHub Network Operations"
],
"title": "Registration Comments"
}
],
"roles": [
"noc",
"administrative",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "88 Colin P Kelly Jr St\nSan Francisco\nCA\n94107\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"GitHub Ops"
],
[
"org",
[],
"text",
"GitHub, Inc."
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"hostmaster@github.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-415-735-4488"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-06T18:01:36-04:00"
},
{
"eventAction": "registration",
"eventDate": "2013-01-03T12:26:15-05:00"
}
],
"handle": "GITHU1-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/GITHU1-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/140.82.121.4"
},
{
"href": "https://whois.arin.net/rest/poc/GITHU1-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/140.82.121.4"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "88 Colin P Kelly Jr Street\nSan Francisco\nCA\n94104\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"GitHub Abuse"
],
[
"org",
[],
"text",
"GitHub"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"noc@github.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-415-857-5430"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-11-25T11:09:46-05:00"
},
{
"eventAction": "registration",
"eventDate": "2012-10-22T14:48:45-04:00"
}
],
"handle": "GITHU",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/GITHU",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/140.82.121.4"
},
{
"href": "https://whois.arin.net/rest/org/GITHU",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/140.82.121.4"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"https://github.com\r",
"Please contact us directly for matters pertaining to abuse.\r",
"Urgent matters including DDoS are handled 24x7."
],
"title": "Registration Comments"
}
],
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"GitHub, Inc."
],
[
"adr",
{
"label": "88 Colin P Kelly Jr Street\nSan Francisco\nCA\n94107\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2021-12-14T20:28:48-05:00"
},
{
"eventAction": "registration",
"eventDate": "2018-04-25T15:34:18-04:00"
}
],
"handle": "NET-140-82-112-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/140.82.112.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/140.82.121.4"
},
{
"href": "https://whois.arin.net/rest/net/NET-140-82-112-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/140.82.121.4"
}
],
"name": "GITHU",
"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/140.82.121.4"
}
],
"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/140.82.121.4"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-140-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "140.82.112.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}Servers asked
| Protocol | Server | Result | Time |
|---|---|---|---|
| RDAP | https://rdap.arin.net/registry/ip/140.82.121.4 | HTTP 200 | 447 ms |
| WHOIS | whois.arin.net “n + 140.82.121.4” | 2,088 bytes | 294 ms |