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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) | 227.7M | 3,140 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,178 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,946 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,371 |
| 512 |
| — |
| 1 |
| AS63476US | SMS-ASSIST - SMS Assist, L.L.C. | 512 | — | 2 |
| AS5860US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS398105US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 512 | 2 | 4 |
| AS30232US | M3C-AS30232 - M3 Consulting LLC | 512 | 4.1K | 2 |
| AS400213US | COMANDSOLUTIONS - COMAND Solutions, Inc | 512 | — | 2 |
| AS11731US | AS11731 - Weston Solutions, Inc. | 512 | — | 2 |
| AS55128US | MCFASSOC - McFarlane Associates LLC | 512 | 17 | 4 |
| AS27004US | SFB - Star Financial Bank | 512 | — | 2 |
| AS17209US | NORTHWEST-EVALUATION-ASSOCIATION - HMH | 512 | — | 2 |
| AS400249US | OC-SANITATION - Orange County Sanitation District | 512 | — | 2 |
| AS396959US | APPLE-BANK-FOR-SAVINGS - Apple Bank for Savings | 512 | — | 1 |
| AS395435US | GAIA - Gaia | 512 | — | 2 |
| AS211831US | Canfield Canfield Scientific, Inc. | 512 | — | 2 |
| AS19588US | GC-1 - GOR CORPORATION | 512 | — | 2 |
| AS395036US | CITYOFSANIBEL - City of Sanibel | 512 | — | 2 |
| AS396456US | THEMAC-1891 - Multnomah Athletic Club | 512 | — | 2 |
| AS53752US | USDIGITAL - US Digital | 512 | — | 2 |
| AS396271US | S-J-ROLLINS-TECHNOLOGIES - S. J. Rollins Technologies | 512 | — | 2 |
| AS29928US | EDATA - LexisNexis Risk Data Management Inc. | 512 | — | 1 |
| AS23247US | SAMTECNA - Samtec, inc. | 512 | — | 2 |
| AS399850US | HCINDIANA - Hamilton County | 512 | — | 2 |
| AS397007US | STRATACACHE - Stratacache Inc. | 512 | — | 2 |
| AS20246US | HOLIDAYINNSDBAYSIDE-GUEST-INTERNET - Holiday Inn San Diego Bayside | 512 | — | 1 |
| AS813US | UUNET-CANADA - Verizon Business | 512 | — | 2 |
| AS402375US | KIMLEY-HORN - Kimley-Horn | 512 | — | 2 |
| AS23152US | NDC-INTERNET1-AS - Nissan North America, Inc. | 512 | — | 2 |
| AS17078US | ALLENCO - Allen & Company LLC | 512 | — | 2 |
| AS22482US | AS22482 - Station Casinos, LLC. | 512 | — | 2 |
| AS54866US | TCS-EDUCATION-SYSTEM - TCS Education System | 512 | — | 2 |
| AS268US | USUHSNET-AS - Uniformed Services University of the Health Sciences | 512 | — | 1 |
| AS36573US | WXII-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS14458US | WORLDKITCHEN-1 - World Kitchen, LLC | 512 | — | 2 |
| AS1632US | SONIC-HEALTHCARE-USA-HNY - SONIC HEALTHCARE USA, INC. | 512 | — | 2 |
| AS11082US | ECH-ASN-EASTMAN-CHEMICAL - Eastman Chemical Company | 512 | — | 2 |
| AS16521US | ISLANDPALMS-GUEST-INTERNET - Island Palms Hotel & Marina | 512 | — | 1 |
| AS397775US | RVH-ASN - RIVERVIEW HOSPITAL | 512 | — | 2 |
| AS17129US | POGOZONE-FN - PogoZone | 512 | — | 2 |
| AS29711US | CENTURA-HEALTH - Centura Health Corporation | 512 | — | 2 |
| AS402327US | ANTERIS-SOLUTIONS-INC - Anteris | 512 | — | 2 |
| AS40905US | BGP-INFOSYNC - InfoSync Services | 512 | — | 1 |
| AS401246US | SPPX - Silicon Prairie Portal & Exchange LLC | 512 | — | 2 |
| AS393931US | HS-AS-001 - HealthStream, Inc. | 512 | — | 2 |
| AS399272US | BARNHOLDT-NA - Barnholdt, LLC | 512 | 271 | 15 |
| AS26903US | SALISBURY-ASN - City of Salisbury, North Carolina | 512 | — | 2 |
| AS33060US | THEPCU-AS-THE-POLICE-CREDIT-UNION - SFPCU | 512 | — | 2 |
| AS53502US | HFT-CALABASAS - Central Purchasing, LLC | 512 | — | 2 |