United Statesarin
1970-01-01
2026-08-13
3
1
66,048
16,777,216
| CIDR | Description | IP Num |
|---|---|---|
|
128.150.0.0/16
|
U.S. National Science Foundation | 65536 |
|
192.12.209.0/24
|
U.S. National Science Foundation | 256 |
|
198.181.231.0/24
|
U.S. National Science Foundation | 256 |
| CIDR | Description | IP NUMs(prefix /64) |
|---|---|---|
|
2620:10f:6000::/40
|
U.S. National Science Foundation | 16777216 |
| AS | Description | Country / Region | IPv4 NUMs | IPv6 NUMs | IPv4 | IPv6 |
|---|---|---|---|---|---|---|
| AS6223 | CENTURYLINK-MTIPS1-STN - CenturyLink Communications, LLC, US |
|
2,560 | 1,114,112 | IPv4  |
IPv6 |
ASNumber: 102 ASName: NSF-HQ-AS ASHandle: AS102 RegDate: 1987-03-31 Updated: 2025-02-11 Ref: https://rdap.arin.net/registry/autnum/102 OrgID: NSF OrgName: U.S. National Science Foundation CanAllocate: Street: Randolph Building Street: 401 Dulany Street City: Alexandria State/Prov: VA Country: US PostalCode: 22314 RegDate: 1970-01-01 Updated: 2026-08-13 OrgAdminHandle ORGOW-ARIN OrgTechHandle ORGOW-ARIN OrgAbuseHandle NSFAB-ARIN OrgAbuseHandle ORGOW-ARIN OrgNOCHandle NSFNO-ARIN OrgNOCHandle ORGOW-ARIN OrgRoutingHandle ORGOW-ARIN OrgDNSHandle ORGOW-ARIN Source: ARIN OrgRoutingHandleHandle: ORGOW-ARIN OrgRoutingHandleName: Org-Owner, OrgRoutingHandlePhone: +1-703-292-4223 OrgRoutingHandleEmail: [email protected] OrgRoutingHandleRef: https://rdap.arin.net/registry/entity/ORGOW-ARIN OrgDNSHandleHandle: ORGOW-ARIN OrgDNSHandleName: Org-Owner, OrgDNSHandlePhone: +1-703-292-4223 OrgDNSHandleEmail: [email protected] OrgDNSHandleRef: https://rdap.arin.net/registry/entity/ORGOW-ARIN OrgAdminHandleHandle: ORGOW-ARIN OrgAdminHandleName: Org-Owner, OrgAdminHandlePhone: +1-703-292-4223 OrgAdminHandleEmail: [email protected] OrgAdminHandleRef: https://rdap.arin.net/registry/entity/ORGOW-ARIN OrgTechHandleHandle: ORGOW-ARIN OrgTechHandleName: Org-Owner, OrgTechHandlePhone: +1-703-292-4223 OrgTechHandleEmail: [email protected] OrgTechHandleRef: https://rdap.arin.net/registry/entity/ORGOW-ARIN OrgAbuseHandleHandle: NSFAB-ARIN OrgAbuseHandleName: NSF Abuse, OrgAbuseHandlePhone: +1-703-292-5050 OrgAbuseHandleEmail: [email protected] OrgAbuseHandleRef: https://rdap.arin.net/registry/entity/NSFAB-ARIN OrgAbuseHandleHandle: ORGOW-ARIN OrgAbuseHandleName: Org-Owner, OrgAbuseHandlePhone: +1-703-292-4223 OrgAbuseHandleEmail: [email protected] OrgAbuseHandleRef: https://rdap.arin.net/registry/entity/ORGOW-ARIN OrgNOCHandleHandle: NSFNO-ARIN OrgNOCHandleName: NSF NOC, OrgNOCHandlePhone: +1-703-292-5050 OrgNOCHandleEmail: [email protected] OrgNOCHandleRef: https://rdap.arin.net/registry/entity/NSFNO-ARIN OrgNOCHandleHandle: ORGOW-ARIN OrgNOCHandleName: Org-Owner, OrgNOCHandlePhone: +1-703-292-4223 OrgNOCHandleEmail: [email protected] OrgNOCHandleRef: https://rdap.arin.net/registry/entity/ORGOW-ARIN