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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 512 |
| — |
| 2 |
| AS7733US | FRZRMTN - Frazier Mountain Internet Service | 512 | — | 2 |
| AS62494US | YELLOWSTONE-FIBER - UTOPIA | 512 | 1 | 2 |
| AS63325US | CARRIAGESERVICESAS - Carriage Services, Inc. | 512 | — | 2 |
| AS18889US | CITY-OF-RUSTON - City of Ruston | 512 | — | 1 |
| AS397419US | OREGON-STATE-LOTTERY - Oregon State Lottery | 512 | — | 2 |
| AS54906US | BENCODENTAL - Benco Dental Company | 512 | — | 2 |
| AS401239US | ASN-RKECO-NET - Roanoke County | 512 | — | 2 |
| AS46802US | GLADIATOR-TECH - Gladiator Technologies, LLC | 512 | — | 2 |
| AS18902US | CMC-II-LLC - CMC II, LLC | 512 | — | 2 |
| AS54525US | AGT01 - APPLIED GLOBAL TECHNOLOGIES, LLC | 512 | — | 1 |
| AS29656US | CCBILL-EU PHOENIX NAP, LLC. | 512 | — | 2 |
| AS22617US | SACCOURT - Superior Court of California, County of Sacramento | 512 | 16 | 3 |
| AS23156US | VG-NET-01 - The Vincit Group | 512 | — | 2 |
| AS394975US | SFHEALTHPLAN - San Francisco Health Plan | 512 | — | 2 |
| AS397440US | TAVANT-SC9-DATACENTER - Tavant Technologies, Inc. | 512 | — | 2 |
| AS398866US | INTERBANK-01 - InterBank | 512 | — | 2 |
| AS398485US | DFINITY-NET - DFINITY USA Research, LLC | 512 | 4.1K | 5 |
| AS53489US | TGNA-WBIR - TEGNA Inc. | 512 | — | 2 |
| AS64228US | ONEIT - OneIT, Inc. | 512 | — | 2 |
| AS1383US | ANSBB-ASNNET-2 - Verizon Business | 512 | — | 1 |
| AS6498US | INTRADO-CORP - West Technology Group, LLC | 512 | — | 2 |
| AS396928US | ASN-FC-01 - FB CORPORATION | 512 | — | 2 |
| AS46361US | GILLETTE-CHILDRENS-SPECIALTY-HEALTHCARE - Gillette Children's Specialty Healthcare | 512 | — | 2 |
| AS26699US | MUHLENBERG-COLLEGE - Muhlenberg College | 512 | — | 2 |
| AS394784US | MEEI-AS - Massachusetts Eye and Ear Infirmary | 512 | — | 2 |
| AS401575US | JPPS-01 - Jeff Parrish, Sole Proprietorship | 512 | 256 | 3 |
| AS396368US | TL-861 - TetherView LLC | 512 | — | 2 |
| AS26372US | VERMONTINFORMATION - Vermont Information Processing | 512 | — | 2 |
| AS19652US | VACATION-EXPRESS - VACATION EXPRESS | 512 | — | 2 |
| AS62894US | PSD-EDTEC-K20-RC-01 - Puyallup School District | 512 | — | 2 |
| AS19670US | CUSTOMCOMPUTERSPECIALISTS - Custom Computer Specialists, Inc. | 512 | — | 2 |
| AS36152US | DAKTRONICS-CORP-ASN-63-85-214-0 - Daktronics | 512 | 256 | 3 |
| AS25711US | VMC-PELLA-AS - Vermeer Manufacturing Company | 512 | — | 2 |
| AS4224US | CALYX-AS - The Calyx Institute | 512 | 1 | 3 |
| AS20143US | SUNET-1 - Suffolk University | 512 | — | 2 |
| AS400530US | DCS-01 - Dubuque Community Schools | 512 | — | 2 |
| AS208379US | APTN The Associated Press | 512 | — | 2 |
| AS15025US | AS-BARTOW - City of Bartow | 512 | — | 2 |
| AS46623US | FISHBACK - Fishback Financial Corporation | 512 | — | 2 |
| AS53560US | ENDO - Endo Pharmaceuticals Inc | 512 | — | 2 |
| AS23433US | STAMPS-COM - STAMPS.COM | 512 | — | 2 |
| AS40061US | UL-ASN-LAX1 - UnitedLayer, LLC | 512 | 8.2K | 3 |
| AS397502US | TGNA-WTOL - TEGNA Inc. | 512 | — | 2 |
| AS393236US | OCTANNER - O. C. TANNER COMPANY | 512 | — | 2 |
| AS401921US | GRACE - Grace Money Co. | 512 | 2 | 4 |
| AS394376US | CAMTECH-BROADBAND - CamTech Broadband | 512 | — | 1 |