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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,110 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,246 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,954 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,419 |
| — |
| — |
| 0 |
| AS4111US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4115US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4122US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4240US | NJNET-AS - New Jersey Net, Inc. | — | — | 0 |
| AS4252US | DNIC-AS-04252 - United States Department of Defense (DoD) | — | — | 0 |
| AS4253US | RWJNET - Robert Wood Johnson University Hospital | — | — | 0 |
| AS4254US | DNIC-AS-04254 - Headquarters, USAISC | — | — | 0 |
| AS4278US | RISE-IA-1 - JAB Wireless, INC. | — | — | 0 |
| AS4305US | PREMIER - Premier Communications | — | — | 0 |
| AS4340US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4342US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4343US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4353US | WNET-AS - WorldNet Inc. | — | — | 0 |
| AS4375US | KEY - KeyNet | — | — | 0 |
| AS4456US | GSNET-NETS - Gulf South Internet Services, Inc. | — | — | 0 |
| AS4484US | EMTF-BIT - Air Force Systems Networking | — | — | 0 |
| AS4494US | INTERBYTES - Megabytes.inc. | — | — | 0 |
| AS4559US | AS4559 - Anton Kapela, Sole Proprietorship | — | — | 0 |
| AS4561US | CL-260-4561 - CyrusOne LLC | — | — | 0 |
| AS4882US | ASPECT-LAS - Aspect Software, Inc. | — | — | 0 |
| AS5063US | ARISTOTLE - Aristotelian Network Solutions, INC. | — | — | 0 |
| AS5074US | ASN-ATTELS - AT&T BMGS | — | — | 0 |
| AS5094US | PARAGON-AS - Paragon Cable | — | — | 0 |
| AS5107US | ATTIS-ASN5107 - AT&T Enterprises, LLC | — | — | 0 |
| AS5130US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5131US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5142US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5149US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5193US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5201US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5224US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5238US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5243US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5245US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5283US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5292US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5295US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5313US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5335US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5344US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5357US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5359US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5677US | PBI-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5762US | NETMAG - Magnet Interactive Studios | — | — | 0 |
| AS5797US | CISPROD-AS - Fiserv Solutions, LLC | — | — | 0 |
| AS5802US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |