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General Information
Name:
U.S. National Science Foundation
Domain:
nsf.gov
Country:
US
Type:
government
Registry:
ARIN
Prefix Counts
IPv4 Count:
66,048
IPv6 Count:
309,485,046,714,833,216,143,884,288
IPv4 Prefixes
| CIDR | Country | Network Name | Organization | Registry | Status | Size |
|---|---|---|---|---|---|---|
| 128.150.0.0/16 | US | NSF-LAN | U.S. National Science Foundation | ARIN | allocation | 65,536 |
| 192.12.209.0/24 | US | NSF | U.S. National Science Foundation | ARIN | allocation | 256 |
| 198.181.231.0/24 | US | NSF-CISE | U.S. National Science Foundation | ARIN | allocation | 256 |
IPv6 Prefixes
| CIDR | Country | Network Name | Organization | Registry | Status |
|---|---|---|---|---|---|
| 2001:428:2500:1c::/64 | US | QWEST-IPV6-1 | Centurylink Communications, LLC | ARIN | allocation |
| 2001:428:9002:f806::/64 | US | QWEST-IPV6-1 | Centurylink Communications, LLC | ARIN | allocation |
| 2620:10f:6000::/40 | US | NSF-HQ | U.S. National Science Foundation | ARIN | allocation |
Network Relationships
Upstreams:
AS6223

