Free network tools
AS WHOIS
Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.
Network Report (All-in-one) BGP Looking Glass BGP Security Check RPKI Validator BGP Hijack & Leak Monitor ASN Intelligence Internet Outages & Anomalies Country Internet Report Domain Insights IP WHOIS AS WHOIS
AS1204
SUNYNET-ASN-AS - The State University of New York Announcing routesAS nameSUNYNET-ASN-AS
OrganisationThe State University of New York
Registry (RIR)ARIN
HandleAS1204
RangeAS1204
Registered20 Dec 1990
Last changed02 Mar 2012
Abuse contact[email protected]
29IPv4 prefixes
0IPv6 prefixes
5Upstreams
0Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS13335 | CLOUDFLARENET - Cloudflare, Inc. | 277 |
| AS3356 | LEVEL3 - Level 3 Parent, LLC | 261 |
| AS174 | COGENT-174 - Cogent Communications, LLC | 257 |
| AS3754 | NYSERNET3-AS - NYSERNet | 6 |
| AS3630 | NYSERNET-BLK - NYSERNet | 2 |
Downstreams
None seen.
IPv4 prefixes (29)
136.223.128.0/20136.150.70.0/24136.223.160.0/20136.150.104.0/24136.150.71.0/24136.223.192.0/18136.150.80.0/24136.223.204.0/23136.223.193.0/24136.223.16.0/24136.150.2.0/24136.223.144.0/20136.150.0.0/24136.223.120.0/21136.150.103.0/24136.223.116.0/22136.223.128.0/19136.150.150.0/24136.223.196.0/24136.150.100.0/24141.254.0.0/17136.150.3.0/24136.150.102.0/24141.254.110.0/24136.150.200.0/24136.223.164.0/23141.254.120.0/22141.254.120.0/24136.223.195.0/24
RPKI-validate all prefixes of AS1204
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | The State University of New York | SUNYC | State University Plaza , 381 Broadway, Albany, NY, 12246, United States | |
| administrative, abuse, technical | Network Operations Center | NOC1591-ARIN | [email protected], +1-518-320-1202 | State University Plaza , 381 Broadway , FB17, Albany, NY, 12246, United States |
Raw registry response
{
"endAutnum": 1204,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-02-25T09:06:07-05:00"
},
{
"eventAction": "registration",
"eventDate": "2004-05-28T10:07:32-04:00"
}
],
"handle": "NOC1591-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NOC1591-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/1204"
},
{
"href": "https://whois.arin.net/rest/poc/NOC1591-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/1204"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative",
"abuse",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "State University Plaza\r\n381 Broadway\r\nFB17\nAlbany\nNY\n12246\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Network Operations Center"
],
[
"org",
[],
"text",
"SUNYNet Technology Services"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-518-320-1202"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-02-25T09:25:49-05:00"
}
],
"handle": "SUNYC",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/SUNYC",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/1204"
},
{
"href": "https://whois.arin.net/rest/org/SUNYC",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/1204"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"The State University of New York"
],
[
"adr",
{
"label": "State University Plaza\r\n381 Broadway\nAlbany\nNY\n12246\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2012-03-02T08:03:18-05:00"
},
{
"eventAction": "registration",
"eventDate": "1990-12-20T00:00:00-05:00"
}
],
"handle": "AS1204",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/1204",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/1204"
},
{
"href": "https://whois.arin.net/rest/asn/AS1204",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/1204"
}
],
"name": "SUNYNET-ASN-AS",
"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/1204"
}
],
"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/1204"
}
],
"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": 1204,
"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.
