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Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.
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AS2
UDEL-DCN - University of Delaware Announcing routesAS nameUDEL-DCN
OrganisationUniversity of Delaware
Registry (RIR)ARIN
HandleAS2
RangeAS2
Registered10 Jan 1991
Last changed09 Nov 2023
9IPv4 prefixes
0IPv6 prefixes
10Upstreams
0Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS45609 | BHARTI-MOBILITY-AS-AP - Bharti Airtel Ltd. AS for GPRS Service | 263 |
| AS41837 | UTC-AS "South telephone company" LLC | 260 |
| AS34 | UDELNET - University of Delaware | 256 |
| AS203794 | Gals-Telecom-AS LLC Gals-Telecom | 95 |
| AS52752 | AS52752 - Vegas Telecom Informatica Ltda. | 60 |
| AS270792 | AS270792 - luciano comin cardozo-me | 48 |
| AS327753 | SBM BANK (KENYA) LIMITED - SBM BANK (KENYA) LIMITED | 24 |
| AS37628 | KAB Technologies - KAB Technologies | 7 |
| AS199268 | LANCOM-SI LANCOM inzeniring racunalniskig sistemov d.o.o. | 3 |
| AS61763 | AS61763 - Poxley Provedor de Internet Ltda | 2 |
Downstreams
None seen.
IPv4 prefixes (9)
RPKI-validate all prefixes of AS2
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | University of Delaware | UNIVER-19-Z | Information Technologies, 192 South Chapel Street, Newark, DE, 19716, United States | |
| technical, routing | Network and Systems Services | NSS13-ARIN | [email protected], [email protected], +1-302-831-6000 | 192 South Chapel Street, Newark, DE, 19716, United States |
| abuse, noc, dns | UDel NOC | UDELN-ARIN | [email protected], +1-302-831-6000, +1-302-831-3717 | Information Technologies, Newark, DE, 19716, United States |
| administrative | Michael DAvis | DAVIS2708-ARIN | [email protected], +1-302-831-6006 | 192 S. Chapel St, Newark, DE, 19716, United States |
| dns, noc, abuse, technical, routing | Scott Huffman | HUFFM208-ARIN | [email protected], +1-302-831-7377 | 192 South Chapel Street, Newark, DE, 19716, United States |
Raw registry response
{
"endAutnum": 2,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-28T14:54:29-04:00"
},
{
"eventAction": "registration",
"eventDate": "2010-06-15T07:43:46-04:00"
}
],
"handle": "NSS13-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NSS13-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/2"
},
{
"href": "https://whois.arin.net/rest/poc/NSS13-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/2"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"routing"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "192 South Chapel Street\nNewark\nDE\n19716\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Network and Systems Services"
],
[
"org",
[],
"text",
"University of Delaware"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-302-831-6000"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-10T08:34:25-05:00"
},
{
"eventAction": "registration",
"eventDate": "2009-08-07T07:54:03-04:00"
}
],
"handle": "UDELN-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UDELN-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/2"
},
{
"href": "https://whois.arin.net/rest/poc/UDELN-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/2"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse",
"noc",
"dns"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "Information Technologies\nNewark\nDE\n19716\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"UDel NOC"
],
[
"org",
[],
"text",
"University of Delaware"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-302-831-6000"
],
[
"tel",
{
"type": [
"work",
"fax"
]
},
"text",
"+1-302-831-3717"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-19T11:51:03-04:00"
},
{
"eventAction": "registration",
"eventDate": "2023-09-21T14:30:35-04:00"
}
],
"handle": "DAVIS2708-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/DAVIS2708-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/2"
},
{
"href": "https://whois.arin.net/rest/poc/DAVIS2708-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/2"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "192 S. Chapel St\nNewark\nDE\n19716\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Michael DAvis"
],
[
"n",
[],
"text",
[
"DAvis",
"Michael",
"",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-302-831-6006"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-23T15:38:08-04:00"
},
{
"eventAction": "registration",
"eventDate": "2026-07-23T15:38:08-04:00"
}
],
"handle": "HUFFM208-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/HUFFM208-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/2"
},
{
"href": "https://whois.arin.net/rest/poc/HUFFM208-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/2"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"dns",
"noc",
"abuse",
"technical",
"routing"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "192 South Chapel Street\nNewark\nDE\n19716\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Scott Huffman"
],
[
"n",
[],
"text",
[
"Huffman",
"Scott",
"",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-302-831-7377"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-30T11:54:01-04:00"
},
{
"eventAction": "registration",
"eventDate": "2008-03-18T13:19:36-04:00"
}
],
"handle": "UNIVER-19-Z",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UNIVER-19-Z",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/2"
},
{
"href": "https://whois.arin.net/rest/org/UNIVER-19-Z",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/2"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"University of Delaware"
],
[
"adr",
{
"label": "Information Technologies\n192 South Chapel Street\nNewark\nDE\n19716\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-11-08T15:01:52-05:00"
},
{
"eventAction": "registration",
"eventDate": "1991-01-10T00:00:00-05:00"
}
],
"handle": "AS2",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/2",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/2"
},
{
"href": "https://whois.arin.net/rest/asn/AS2",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/2"
}
],
"name": "UDEL-DCN",
"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/2"
}
],
"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/2"
}
],
"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": 2,
"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.