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General Information
Name:
U.S. Department of The Interior
Domain:
doi.gov
Country:
US
Type:
government
Registry:
ARIN
Prefix Counts
IPv4 Count:
1,325,056
IPv6 Count:
79,228,162,514,264,337,593,543,950,336
IPv4 Prefixes
| CIDR | Country | Network Name | Organization | Registry | Status | Size |
|---|---|---|---|---|---|---|
| 130.11.0.0/16 | US | GEORES | Department of Interior United States Geological Survey | ARIN | allocation | 65,536 |
| 130.118.0.0/16 | US | GEOMEN | Department of Interior United States Geological Survey | ARIN | allocation | 65,536 |
| 130.118.176.0/22 | US | GEOMEN | Department of Interior United States Geological Survey | ARIN | allocation | 1,024 |
| 130.118.176.0/21 | US | GEOMEN | Department of Interior United States Geological Survey | ARIN | allocation | 2,048 |
| 130.118.178.0/24 | US | GEOMEN | Department of Interior United States Geological Survey | ARIN | allocation | 256 |
| 130.118.181.0/24 | US | GEOMEN | Department of Interior United States Geological Survey | ARIN | allocation | 256 |
| 130.118.184.0/24 | US | GEOMEN | Department of Interior United States Geological Survey | ARIN | allocation | 256 |
| 130.118.184.0/22 | US | GEOMEN | Department of Interior United States Geological Survey | ARIN | allocation | 1,024 |
| 136.177.0.0/16 | US | GEODEN | Department of Interior United States Geological Survey | ARIN | allocation | 65,536 |
| 137.77.0.0/17 | US | RECNET | U.S. Department of Interior Bureau of Reclamation | ARIN | allocation | 32,768 |
| 137.77.0.0/16 | US | RECNET | U.S. Department of Interior Bureau of Reclamation | ARIN | allocation | 65,536 |
| 137.227.0.0/19 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 8,192 |
| 137.227.5.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.29.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.31.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.64.0/19 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 8,192 |
| 137.227.66.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.75.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.76.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.80.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.83.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.125.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.126.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.127.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.134.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.136.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.158.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.159.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.160.0/19 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 8,192 |
| 137.227.163.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.176.0/21 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 2,048 |
| 137.227.200.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.201.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.204.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.224.0/19 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 8,192 |
| 137.227.227.0/24 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 256 |
| 137.227.240.0/21 | US | US-DEPARTMENT-OF-THE-INTERIOR | U.S. Department of The Interior | ARIN | allocation | 2,048 |
| 140.214.0.0/16 | US | MP-RECNET | U.S. Department of Interior Bureau of Reclamation | ARIN | allocation | 65,536 |
| 140.215.0.0/16 | US | DO-RECNET | U.S. Department of Interior Bureau of Reclamation | ARIN | allocation | 65,536 |
| 140.216.0.0/16 | US | LC-RECNET | U.S. Department of Interior Bureau of Reclamation | ARIN | allocation | 65,536 |
| 140.217.0.0/16 | US | UC-RECNET | U.S. Department of Interior Bureau of Reclamation | ARIN | allocation | 65,536 |
| 140.218.0.0/16 | US | PN-RECNET | U.S. Department of Interior Bureau of Reclamation | ARIN | allocation | 65,536 |
| 140.219.0.0/16 | US | GP-RECNET | U.S. Department of Interior Bureau of Reclamation | ARIN | allocation | 65,536 |
| 144.47.0.0/16 | US | GEOATL | Department of Interior United States Geological Survey | ARIN | allocation | 65,536 |
| 152.61.0.0/16 | US | EROSLAN1 | Department of Interior United States Geological Survey | ARIN | allocation | 65,536 |
| 158.68.64.0/23 | US | BLM | Bureau of Land Management | ARIN | allocation | 512 |
| 158.68.64.0/24 | US | BLM | Bureau of Land Management | ARIN | allocation | 256 |
| 158.68.66.0/24 | US | BLM | Bureau of Land Management | ARIN | allocation | 256 |
| 158.68.192.0/20 | US | BLM | Bureau of Land Management | ARIN | allocation | 4,096 |
| 158.68.195.0/24 | US | BLM | Bureau of Land Management | ARIN | allocation | 256 |
| 158.68.208.0/21 | US | BLM | Bureau of Land Management | ARIN | allocation | 2,048 |
| 158.68.216.0/21 | US | BLM | Bureau of Land Management | ARIN | allocation | 2,048 |
| 158.68.221.0/24 | US | BLM | Bureau of Land Management | ARIN | allocation | 256 |
| 158.68.231.0/24 | US | BLM | Bureau of Land Management | ARIN | allocation | 256 |
| 158.68.232.0/21 | US | BLM | Bureau of Land Management | ARIN | allocation | 2,048 |
| 158.68.240.0/21 | US | BLM | Bureau of Land Management | ARIN | allocation | 2,048 |
| 158.68.249.0/24 | US | BLM | Bureau of Land Management | ARIN | allocation | 256 |
| 159.189.0.0/16 | US | NWRC-USGS | National Wetlands Research Center, United States Geological Survey | ARIN | allocation | 65,536 |
| 159.189.0.0/18 | US | NWRC-USGS | National Wetlands Research Center, United States Geological Survey | ARIN | allocation | 16,384 |
| 159.189.64.0/19 | US | NWRC-USGS | National Wetlands Research Center, United States Geological Survey | ARIN | allocation | 8,192 |
| 159.189.96.0/19 | US | NWRC-USGS | National Wetlands Research Center, United States Geological Survey | ARIN | allocation | 8,192 |
| 159.189.128.0/18 | US | NWRC-USGS | National Wetlands Research Center, United States Geological Survey | ARIN | allocation | 16,384 |
| 159.189.224.0/22 | US | NWRC-USGS | National Wetlands Research Center, United States Geological Survey | ARIN | allocation | 1,024 |
| 159.189.240.0/20 | US | NWRC-USGS | National Wetlands Research Center, United States Geological Survey | ARIN | allocation | 4,096 |
| 161.160.32.0/24 | US | MMS-NET-2 | U.S. Department of The Interior | ARIN | allocation | 256 |
| 161.160.64.0/19 | US | MMS-NET-2 | U.S. Department of The Interior | ARIN | allocation | 8,192 |
| 161.160.96.0/19 | US | MMS-NET-2 | U.S. Department of The Interior | ARIN | allocation | 8,192 |
| 161.160.160.0/19 | US | MMS-NET-2 | U.S. Department of The Interior | ARIN | allocation | 8,192 |
| 161.160.192.0/19 | US | MMS-NET-2 | U.S. Department of The Interior | ARIN | allocation | 8,192 |
| 161.160.254.0/24 | US | MMS-NET-2 | U.S. Department of The Interior | ARIN | allocation | 256 |
| 161.217.0.0/17 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 32,768 |
| 161.217.1.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.2.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.3.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.5.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.8.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.11.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.14.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.17.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.20.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.22.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.23.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.26.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.28.0/23 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 512 |
| 161.217.30.0/23 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 512 |
| 161.217.36.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.38.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.39.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.42.0/23 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 512 |
| 161.217.44.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.52.0/23 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 512 |
| 161.217.54.0/23 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 512 |
| 161.217.58.0/23 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 512 |
| 161.217.61.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.64.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.65.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.66.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.68.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.69.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.74.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.75.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.76.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.77.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.100.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.104.0/23 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 512 |
| 161.217.106.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.107.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.108.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.113.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.115.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.117.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.122.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.123.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.128.0/17 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 32,768 |
| 161.217.130.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.138.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.143.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.144.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.145.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.146.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.154.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.160.0/23 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 512 |
| 161.217.166.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.177.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.178.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.180.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.183.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.185.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.188.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.189.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.192.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.194.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.196.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.197.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.201.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.209.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.218.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.229.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 161.217.236.0/24 | US | TRUSTNET | U.S. Bureau of Indian Affairs | ARIN | allocation | 256 |
| 164.159.0.0/16 | US | FWS-NET | U.S. Fish And Wildlife Service | ARIN | allocation | 65,536 |
| 164.159.59.0/24 | US | FWS-NET | U.S. Fish And Wildlife Service | ARIN | allocation | 256 |
| 164.159.61.0/24 | US | FWS-NET | U.S. Fish And Wildlife Service | ARIN | allocation | 256 |
| 164.159.62.0/24 | US | FWS-NET | U.S. Fish And Wildlife Service | ARIN | allocation | 256 |
| 164.159.152.0/21 | US | FWS-NET | U.S. Fish And Wildlife Service | ARIN | allocation | 2,048 |
| 164.159.171.0/24 | US | FWS-NET | U.S. Fish And Wildlife Service | ARIN | allocation | 256 |
| 164.159.202.0/24 | US | FWS-NET | U.S. Fish And Wildlife Service | ARIN | allocation | 256 |
| 165.83.0.0/16 | US | NPS-NET | National Park Service | ARIN | allocation | 65,536 |
| 165.83.28.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.28.0/22 | US | NPS-NET | National Park Service | ARIN | allocation | 1,024 |
| 165.83.40.0/21 | US | NPS-NET | National Park Service | ARIN | allocation | 2,048 |
| 165.83.48.0/20 | US | NPS-NET | National Park Service | ARIN | allocation | 4,096 |
| 165.83.64.0/19 | US | NPS-NET | National Park Service | ARIN | allocation | 8,192 |
| 165.83.96.0/20 | US | NPS-NET | National Park Service | ARIN | allocation | 4,096 |
| 165.83.112.0/20 | US | NPS-NET | National Park Service | ARIN | allocation | 4,096 |
| 165.83.128.0/22 | US | NPS-NET | National Park Service | ARIN | allocation | 1,024 |
| 165.83.133.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.140.0/22 | US | NPS-NET | National Park Service | ARIN | allocation | 1,024 |
| 165.83.144.0/20 | US | NPS-NET | National Park Service | ARIN | allocation | 4,096 |
| 165.83.160.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.176.0/20 | US | NPS-NET | National Park Service | ARIN | allocation | 4,096 |
| 165.83.197.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.198.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.199.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.200.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.201.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.203.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.204.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.208.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.209.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.211.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.212.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.213.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.218.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.219.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.220.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.221.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.222.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.223.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.224.0/20 | US | NPS-NET | National Park Service | ARIN | allocation | 4,096 |
| 165.83.240.0/24 | US | NPS-NET | National Park Service | ARIN | allocation | 256 |
| 165.83.252.0/22 | US | NPS-NET | National Park Service | ARIN | allocation | 1,024 |
| 192.41.204.0/24 | US | EROS-NET | Department of Interior United States Geological Survey | ARIN | allocation | 256 |
| 192.58.224.0/24 | US | NCRDS2 | Department of Interior United States Geological Survey | ARIN | allocation | 256 |
| 192.58.225.0/24 | US | NCRDS3 | Department of Interior United States Geological Survey | ARIN | allocation | 256 |
| 192.135.177.0/24 | US | MMS-NOLA1 | U.S. Department of The Interior | ARIN | allocation | 256 |
| 192.135.178.0/24 | US | MMS-NOLA2 | U.S. Department of The Interior | ARIN | allocation | 256 |
| 192.135.179.0/24 | US | MMS-NOLA3 | U.S. Department of The Interior | ARIN | allocation | 256 |
| 192.146.254.0/24 | US | GEO-WRD-UAZ | Department of Interior United States Geological Survey | ARIN | allocation | 256 |
| 192.243.128.0/18 | US | NETBLK-OSM | Office of Surface Mining Reclamation And Enforcement | ARIN | allocation | 16,384 |
| 192.243.160.0/20 | US | NETBLK-OSM | Office of Surface Mining Reclamation And Enforcement | ARIN | allocation | 4,096 |
| 192.243.176.0/24 | US | NETBLK-OSM | Office of Surface Mining Reclamation And Enforcement | ARIN | allocation | 256 |
| 192.243.177.0/24 | US | NETBLK-OSM | Office of Surface Mining Reclamation And Enforcement | ARIN | allocation | 256 |
| 198.246.80.0/24 | US | DOI-HQ | U.S. Department of The Interior | ARIN | allocation | 256 |
| 199.244.155.0/24 | US | DOI-OIG1 | U.S. Department of The Interior | ARIN | allocation | 256 |
| 199.244.156.0/24 | US | DOI-OIG2 | U.S. Department of The Interior | ARIN | allocation | 256 |
| 204.17.176.0/24 | US | GEOVAR | Department of Interior United States Geological Survey | ARIN | allocation | 256 |
| 204.52.189.0/24 | US | BLM2 | Bureau of Land Management | ARIN | allocation | 256 |
| 204.52.190.0/24 | US | BLM2 | Bureau of Land Management | ARIN | allocation | 256 |
| 204.124.92.0/24 | US | BLM-1 | Bureau of Land Management | ARIN | allocation | 256 |
| 204.124.93.0/24 | US | BLM-1 | Bureau of Land Management | ARIN | allocation | 256 |
| 205.173.0.0/21 | US | AMD-GOV | U.S. Department of The Interior | ARIN | allocation | 2,048 |
| 205.173.5.0/24 | US | AMD-GOV | U.S. Department of The Interior | ARIN | allocation | 256 |
| 206.197.40.0/23 | US | AKJPONET | U.S. Department of The Interior | ARIN | allocation | 512 |
| 206.197.41.0/24 | US | AKJPONET-2 | U.S. Department of The Interior | ARIN | allocation | 256 |
IPv6 Prefixes
| CIDR | Country | Network Name | Organization | Registry | Status |
|---|---|---|---|---|---|
| 2001:49c8::/32 | US | USDOI | U.S. Department of The Interior | ARIN | allocation |
