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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,346 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 512 |
| — |
| 2 |
| AS30586US | BOS - Bank Of Springfield | 512 | — | 2 |
| AS16593US | FMCIN - First Merchants Corporation | 512 | — | 2 |
| AS32980US | NEUSTAR-AS5 - NeuStar, Inc. | 512 | — | 2 |
| AS395560US | THECULVERSTUDIOS - The Culver Studios | 512 | — | 2 |
| AS393824US | APOG-LENOIR-RHYNE - Apogee Telecom Inc. | 512 | — | 1 |
| AS32983US | CORELIGHTNET-GOVCLOUD - Corelight, Inc. | 512 | 4 | 6 |
| AS33206US | ESI - Estech Systems, Inc | 512 | — | 2 |
| AS399850US | HCINDIANA - Hamilton County | 512 | — | 2 |
| AS400913US | COMARCH-NET-US-2-PHX - Comarch Inc | 512 | — | 2 |
| AS18561US | EPAM - EPAM Systems, Inc | 512 | 2 | 4 |
| AS46169US | GTOWN - City of Georgetown | 512 | — | 2 |
| AS32334US | CLOUDCALL-AS - CloudCall Inc | 512 | 1 | 3 |
| AS63050US | MII-DOMAIN - MiTek Inc. | 512 | — | 2 |
| AS394964US | MARTINMARIETTA-AS1 - Martin Marietta Inc. | 512 | — | 2 |
| AS20353US | ADAGE-CAPITAL---ASN - Adage Capital Partners, LLC | 512 | — | 2 |
| AS400648US | NATURALWIRELESS - Natural Wireless, LLC | 512 | — | 1 |
| AS18433US | ONESKY-FLIGHT-LLC - OneSky | 512 | — | 2 |
| AS54223US | ETRAILER - etrailer Corporation | 512 | — | 2 |
| AS813US | UUNET-CANADA - Verizon Business | 512 | — | 2 |
| AS15354US | AS-BML01 - Morgan, Lewis & Bockius LLP | 512 | — | 2 |
| AS19147US | VANCOUVER-CLINIC - The Vancouver Clinic, Inc. P.S. | 512 | — | 2 |
| AS401827US | UNITED NATIONS FEDERAL CREDIT UNION - UNFCU | 512 | — | 2 |
| AS53502US | HFT-CALABASAS - Central Purchasing, LLC | 512 | — | 2 |
| AS7423US | PUTNAMFT - Putnam Fiduciary Trust | 512 | — | 2 |
| AS11731US | AS11731 - Weston Solutions, Inc. | 512 | — | 2 |
| AS64283US | FLORIDAPOLY - Florida Polytechnic University | 512 | — | 2 |
| AS398287US | BITCOM - Bitcom | 512 | — | 2 |
| AS398701US | SLEEPNUMBER-01 - Sleep Number Corporation | 512 | — | 2 |
| AS22696US | CBI-AS - CB&I | 512 | — | 2 |
| AS26903US | SALISBURY-ASN - City of Salisbury, North Carolina | 512 | — | 2 |
| AS400145US | GLADIUS-DC-01 - Gladius Technology Solutions, LLC | 512 | — | 2 |
| AS397742US | NUVISION-TECHNOLOGIES-INC - NUVISION TECHNOLOGIES | 512 | — | 2 |
| AS29928US | EDATA - LexisNexis Risk Data Management Inc. | 512 | — | 1 |
| AS17388US | HOVERNET-AS - Hover Networks, Inc. | 512 | — | 2 |
| AS17209US | NORTHWEST-EVALUATION-ASSOCIATION - HMH | 512 | — | 2 |
| AS50075US | zayocloud-de Zayo Group, LLC | 512 | — | 2 |
| AS397126US | SWRI-BLDR - Southwest Research Institute | 512 | — | 2 |
| AS394032US | CD-MKE-AS1 - Capital Data Inc | 512 | — | 2 |
| AS22187US | RAULAND-BORG - Rauland-Borg Corporation | 512 | — | 2 |
| AS39985US | RACKROOM-SHOES - Rack Room Shoes | 512 | — | 2 |
| AS394336US | PINNACLEBANK - Pinnacle Data Services, LLC | 512 | — | 2 |
| AS62613US | PERELESS - Pereless Systems | 512 | — | 2 |
| AS399707US | EA-ORLANDO - Electronic Arts, Inc. | 512 | — | 2 |
| AS15351US | VISPERAD-NETWORKS-LLC - VISPERAD NETWORKS, LLC | 512 | — | 2 |
| AS401237US | CVR-ENERGY - CVR Services, LLC | 512 | — | 1 |
| AS62669US | SANS-INSTITUTE - SANS INSTITUTE | 512 | — | 2 |