Organization
U.S. National Science Foundation
NSF-HQ
Location
Alexandria
Virginia, United States (US)
Hostname
—
Geolocation
United States (US) United States
- Country
- United States (US)
- Region
- Virginia
- City
- Alexandria
- Continent
- North America
- Coordinates
- 38.8047, -77.0435 View on map ↗
Network Information
IP Range 2620:10f:6000:: – 2620:10f:60ff:ffff:ffff:ffff:ffff:ffff CIDR 2620:10F:6000::/40 Network Name NSF-HQ Handle NET6-2620-10F-6000-1 Type DIRECT ALLOCATION Parent Network NET6-2620-1 Organization U.S. National Science Foundation Organization ID NSF Address Randolph Building, 401 Dulany Street, Alexandria, VA, 22314, United States Country United States (US) Registry ARIN Registered On Aug 02, 2012 Last Updated Dec 15, 2021 Status
active
ASN & Routing
Origin AS AS102 AS Name NSF-HQ-AS - U.S. National Science Foundation, US Announced Prefix 2620:10f:6000::/40 AS Registry ARIN Prefix Country United States (US) Allocated 2012-08-02 RPKI Origin Not found (no ROA covers this prefix)
Reverse DNS
No PTR record is published for this address.
Abuse Contact
Raw RDAP Response
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v6prefix": "2620:10F:6000::",
"length": 40
}
],
"endAddress": "2620:10f:60ff:ffff:ffff:ffff:ffff:ffff",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-18T09:34:38-04:00"
},
{
"eventAction": "registration",
"eventDate": "2010-06-25T08:17:46-04:00"
}
],
"handle": "NSFAB-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NSFAB-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2620:10f:6000::"
},
{
"href": "https://whois.arin.net/rest/poc/NSFAB-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2620:10f:6000::"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "2415 Eisenhower Ave\nAlexandria\nVA\n22314\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"NSF Abuse"
],
[
"org",
{},
"text",
"National Science Foundation"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-703-292-5050"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-18T09:34:42-04:00"
},
{
"eventAction": "registration",
"eventDate": "2010-06-25T08:29:35-04:00"
}
],
"handle": "NSFNO-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NSFNO-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2620:10f:6000::"
},
{
"href": "https://whois.arin.net/rest/poc/NSFNO-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2620:10f:6000::"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "2415 Eisenhower Ave\nAlexandria\nVA\n22314\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"NSF NOC"
],
[
"org",
{},
"text",
"National Science Foundation"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-703-292-5050"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-22T08:14:45-04:00"
},
{
"eventAction": "registration",
"eventDate": "2025-05-22T11:33:26-04:00"
}
],
"handle": "ORGOW-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ORGOW-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2620:10f:6000::"
},
{
"href": "https://whois.arin.net/rest/poc/ORGOW-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2620:10f:6000::"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"dns",
"abuse",
"noc",
"administrative",
"routing"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "2415 Eisenhower Ave\nAlexandria\nVA\n22314\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Org-Owner"
],
[
"org",
{},
"text",
"U.S. National Science Foundation"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-703-292-4223"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-13T09:24:09-04:00"
}
],
"handle": "NSF",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NSF",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2620:10f:6000::"
},
{
"href": "https://whois.arin.net/rest/org/NSF",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2620:10f:6000::"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"U.S. National Science Foundation"
],
[
"adr",
{
"label": "Randolph Building\n401 Dulany Street\nAlexandria\nVA\n22314\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2021-12-14T20:28:39-05:00"
},
{
"eventAction": "registration",
"eventDate": "2012-08-02T16:45:21-04:00"
}
],
"handle": "NET6-2620-10F-6000-1",
"ipVersion": "v6",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/2620:10f:6000::",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2620:10f:6000::"
},
{
"href": "https://whois.arin.net/rest/net/NET6-2620-10F-6000-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2620:10f:6000::"
}
],
"name": "NSF-HQ",
"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/2620:10f:6000::"
}
],
"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/2620:10f:6000::"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET6-2620-1",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "2620:10f:6000::",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
} Contact details of private individuals are redacted.