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AS18438
BROWNB - Brown Brothers Harriman & Company Announcing routesAS nameBROWNB
OrganisationBrown Brothers Harriman & Company
Registry (RIR)ARIN
HandleAS18438
RangeAS18438
Registered29 Aug 2000
Last changed22 Apr 2017
Abuse contact[email protected]
20IPv4 prefixes
0IPv6 prefixes
9Upstreams
0Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS55002 | DEFENSE-NET - F5, Inc. | 302 |
| AS54004 | LIGHTPATH - Cablevision Lightpath LLC | 171 |
| AS2516 | KDDI - KDDI CORPORATION | 146 |
| AS174 | COGENT-174 - Cogent Communications, LLC | 141 |
| AS46887 | CROWNCASTLE-AS46887 - Crown Castle Fiber LLC | 131 |
| AS3356 | LEVEL3 - Level 3 Parent, LLC | 121 |
| AS8220 | COLT COLT Technology Services Group Limited | 72 |
| AS6461 | ZAYO-6461 - Zayo Bandwidth | 71 |
| AS9141 | AS9141 P4 Sp. z o.o. | 21 |
Downstreams
None seen.
IPv4 prefixes (20)
RPKI-validate all prefixes of AS18438
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | Brown Brothers Harriman & Company | BBH-3 | Harborside Financial Center, 185 Hudson Street, Suite 1150, Jersey City, NJ, 07311, United States | |
| abuse, administrative, technical | hostmaster | HOSTM1081-ARIN | [email protected], +1-201-418-5600 | 185 Hudson Street , Suite 1150, Jersey City, NJ, 07311-4003, United States |
| technical | hostmaster | HOSTM1081-ARIN | [email protected], +1-201-418-5600 | 185 Hudson Street , Suite 1150, Jersey City, NJ, 07311-4003, United States |
Raw registry response
{
"endAutnum": 18438,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-29T08:59:09-04:00"
},
{
"eventAction": "registration",
"eventDate": "2007-08-13T14:30:09-04:00"
}
],
"handle": "HOSTM1081-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/HOSTM1081-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/18438"
},
{
"href": "https://whois.arin.net/rest/poc/HOSTM1081-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/18438"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse",
"administrative",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "185 Hudson Street\r\nSuite 1150\nJersey City\nNJ\n07311-4003\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"hostmaster"
],
[
"org",
[],
"text",
"Brown Brothers Harriman & Company"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-201-418-5600"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2019-08-13T15:13:30-04:00"
},
{
"eventAction": "registration",
"eventDate": "1992-07-22T00:00:00-04:00"
}
],
"handle": "BBH-3",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/BBH-3",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/18438"
},
{
"href": "https://whois.arin.net/rest/org/BBH-3",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/18438"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Brown Brothers Harriman & Company"
],
[
"adr",
{
"label": "Harborside Financial Center\n185 Hudson Street, Suite 1150\nJersey City\nNJ\n07311\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-29T08:59:09-04:00"
},
{
"eventAction": "registration",
"eventDate": "2007-08-13T14:30:09-04:00"
}
],
"handle": "HOSTM1081-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/HOSTM1081-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/18438"
},
{
"href": "https://whois.arin.net/rest/poc/HOSTM1081-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/18438"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "185 Hudson Street\r\nSuite 1150\nJersey City\nNJ\n07311-4003\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"hostmaster"
],
[
"org",
[],
"text",
"Brown Brothers Harriman & Company"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-201-418-5600"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2017-04-21T22:26:01-04:00"
},
{
"eventAction": "registration",
"eventDate": "2000-08-29T00:00:00-04:00"
}
],
"handle": "AS18438",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/18438",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/18438"
},
{
"href": "https://whois.arin.net/rest/asn/AS18438",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/18438"
}
],
"name": "BROWNB",
"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/autnum/18438"
}
],
"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/autnum/18438"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "autnum",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"nro_rdap_profile_asn_flat_0"
],
"startAutnum": 18438,
"status": [
"active"
]
}Results come from public internet registries and live global routing data. Results are cached for up to an hour. Lookups are logged with your IP address to prevent abuse — see our Privacy Policy.