Registry · RDAP Original response
https://rdap.arin.net/registry/ip/161.51.0.0
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "161.51.0.0",
"length": 19
},
{
"v4prefix": "161.51.32.0",
"length": 20
}
],
"endAddress": "161.51.47.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-21T15:03:52-04:00"
},
{
"eventAction": "registration",
"eventDate": "2004-11-15T16:25:12-05:00"
}
],
"handle": "ADMIN447-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ADMIN447-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/161.51.0.0"
},
{
"href": "https://whois.arin.net/rest/poc/ADMIN447-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/161.51.0.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "601 Jefferson Ave\nHouston\nTX\n77002\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Administrative POC"
],
[
"org",
[],
"text",
"KBR Inc."
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"kbrdnsadmin@kbr.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-713-753-4000"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-08-28T08:39:44-04:00"
},
{
"eventAction": "registration",
"eventDate": "2020-01-22T15:35:06-05:00"
}
],
"handle": "HERRI169-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/HERRI169-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/161.51.0.0"
},
{
"href": "https://whois.arin.net/rest/poc/HERRI169-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/161.51.0.0"
}
],
"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 2024-08-27"
],
"title": "Unvalidated POC"
}
],
"roles": [
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "601 Jefferson\nHouston\nTX\n77002\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Mandy Herrington"
],
[
"n",
[],
"text",
[
"Herrington",
"Mandy",
"",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"mandy.herrington@kbr.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-713-753-4946"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-05T08:57:49-04:00"
},
{
"eventAction": "registration",
"eventDate": "2004-11-15T16:25:12-05:00"
}
],
"handle": "TECHN193-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/TECHN193-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/161.51.0.0"
},
{
"href": "https://whois.arin.net/rest/poc/TECHN193-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/161.51.0.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "601 Jefferson Ave\nHouston\nTX\n77002\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Technical POC"
],
[
"org",
[],
"text",
"KBR Inc."
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"kbrdnsadmin@kbr.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-713-753-4357"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2020-02-13T13:04:54-05:00"
},
{
"eventAction": "registration",
"eventDate": "2004-11-15T16:25:12-05:00"
}
],
"handle": "KBR-3",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/KBR-3",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/161.51.0.0"
},
{
"href": "https://whois.arin.net/rest/org/KBR-3",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/161.51.0.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"KBR"
],
[
"adr",
{
"label": "601 Jefferson Ave\nHouston\nTX\n77002\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-12-27T10:12:43-05:00"
},
{
"eventAction": "registration",
"eventDate": "1992-05-27T00:00:00-04:00"
}
],
"handle": "NET-161-51-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/161.51.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/161.51.0.0"
},
{
"href": "https://whois.arin.net/rest/net/NET-161-51-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/161.51.0.0"
}
],
"name": "KELLOGG-BROWN-ROOT-INC",
"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/161.51.0.0"
}
],
"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/161.51.0.0"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-161-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "161.51.0.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}