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
AS268
USUHSNET-AS - Uniformed Services University of the Health Sciences Announcing routesAS nameUSUHSNET-AS
OrganisationUniformed Services University of the Health Sciences
Registry (RIR)ARIN
HandleAS268
RangeAS268
Registered09 Feb 1989
Last changed11 Jan 1991
Abuse contact[email protected]
1IPv4 prefixes
0IPv6 prefixes
1Upstreams
0Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS10886 | MAX-GIGAPOP - University of Maryland | 228 |
Downstreams
None seen.
IPv4 prefixes (1)
RPKI-validate all prefixes of AS268
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | Uniformed Services University of the Health Sciences | USUHS | 4301 Jones Bridge Road, Bethesda, MD, 20814-4799, United States | |
| administrative, abuse, technical | Michael Karas | MK124-ARIN | [email protected], +1-703-326-2650 | Network Solutions, Inc, 505 Huntmar Park Drive, Herndon, VA, 20165, United States |
| technical | Michael Karas | MK124-ARIN | [email protected], +1-703-326-2650 | Network Solutions, Inc, 505 Huntmar Park Drive, Herndon, VA, 20165, United States |
Raw registry response
{
"endAutnum": 268,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2000-05-02T10:58:06-04:00"
},
{
"eventAction": "registration",
"eventDate": "1988-09-26T13:26:07-04:00"
}
],
"handle": "MK124-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MK124-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/268"
},
{
"href": "https://whois.arin.net/rest/poc/MK124-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/268"
}
],
"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 2010-06-16"
],
"title": "Unvalidated POC"
}
],
"roles": [
"administrative",
"abuse",
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "Network Solutions, Inc\n505 Huntmar Park Drive\nHerndon\nVA\n20165\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Michael Karas"
],
[
"n",
[],
"text",
[
"Karas",
"Michael",
"",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-703-326-2650"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2012-10-10T01:54:27-04:00"
},
{
"eventAction": "registration",
"eventDate": "1988-12-06T00:00:00-05:00"
}
],
"handle": "USUHS",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/USUHS",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/268"
},
{
"href": "https://whois.arin.net/rest/org/USUHS",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/268"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Uniformed Services University of the Health Sciences"
],
[
"adr",
{
"label": "4301 Jones Bridge Road\nBethesda\nMD\n20814-4799\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2000-05-02T10:58:06-04:00"
},
{
"eventAction": "registration",
"eventDate": "1988-09-26T13:26:07-04:00"
}
],
"handle": "MK124-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MK124-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/268"
},
{
"href": "https://whois.arin.net/rest/poc/MK124-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/268"
}
],
"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 2010-06-16"
],
"title": "Unvalidated POC"
}
],
"roles": [
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "Network Solutions, Inc\n505 Huntmar Park Drive\nHerndon\nVA\n20165\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Michael Karas"
],
[
"n",
[],
"text",
[
"Karas",
"Michael",
"",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-703-326-2650"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "1991-01-10T22:42:40-05:00"
},
{
"eventAction": "registration",
"eventDate": "1989-02-09T00:00:00-05:00"
}
],
"handle": "AS268",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/268",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/268"
},
{
"href": "https://whois.arin.net/rest/asn/AS268",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/268"
}
],
"name": "USUHSNET-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/268"
}
],
"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/268"
}
],
"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": 268,
"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.
