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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. | 211.2M | 21,260 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,265 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,727 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,958 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,328 |
| — |
| — |
| 0 |
| AS132624US | NNC-AS-AP - NexGen Networks Corporation | — | — | 0 |
| AS199721US | FREESUPERPLANET YUGS Networks LTD | — | — | 0 |
| AS204617US | ASN-XIPE1 Joel Pinnow | — | — | 0 |
| AS210762US | FROOT_TGD1 Internet Systems Consortium Inc. | — | — | 0 |
| AS211818US | DDC-LND DDCatch Inc. | — | — | 0 |
| AS212231US | Miss-Group-Inc Miss Group Inc | — | — | 0 |
| AS212802US | JEFFREY-RESCIGNANO Jeffrey Rescignano | — | — | 0 |
| AS213042US | VineethP-Transit-AS Vineeth Penugonda | — | — | 0 |
| AS216449US | SKYWOLF-US-MNT Skywolf Inc | — | — | 0 |
| AS393237US | AS-DZONE - 6G Networks Inc | — | — | 0 |
| AS393255US | AS-SAFETY-INSURANCE2 - Safety Insurance Company | — | — | 0 |
| AS393345US | CCLSPRNTTWC - Center for Creative Leadership | — | — | 0 |
| AS393354US | TOWNOFHOLLYSPRINGS - Town of Holly Springs | — | — | 0 |
| AS393380US | PRECISIONX - PrecisionX Technology LLC | — | — | 0 |
| AS393509US | INCAP-HOLD-LLC - Incapital Holdings LLC | — | — | 0 |
| AS393519US | INTEGRITYME-ASN - Integrity Medicolegal Enterprises LLC | — | — | 0 |
| AS393558US | ALR - AlerisLife Inc. | — | — | 0 |
| AS393720US | BEMA - BEMA ELECTRONICS, INC. | — | — | 0 |
| AS393763US | CYCORE - CyCore Systems, Inc | — | — | 0 |
| AS393774US | NNB-ASN - Nicolet National Bank | — | — | 0 |
| AS393855US | AS-BYO - Wan | — | — | 0 |
| AS393870US | WMPL-1 - Ascend | — | — | 0 |
| AS393874US | DROPBOXC - Dropbox Inc | — | — | 0 |
| AS394008US | DBI-AS - Wex Health, Inc. | — | — | 0 |
| AS394150US | WH01 - Wex Health, Inc. | — | — | 0 |
| AS394162US | VSD-LAS - Victoria's Secret | — | — | 0 |
| AS394267US | AS394267 - Cayuse Holdings LLC | — | — | 0 |
| AS394455US | DURACELL - Duracell | — | — | 0 |
| AS394480US | EMA-SD - eMoney Advisor | — | — | 0 |
| AS394502US | CTG - Century Technology Group, Inc. | — | — | 0 |
| AS394544US | PROD2 - Stratos Global Services, LLC | — | — | 0 |
| AS394726US | TRAVELPORT - Travelport Operations, Inc. | — | — | 0 |
| AS394783US | WAFD - Washington Federal | — | — | 0 |
| AS394860US | MERCOLA-3200 - Mercola Consulting Services LLC | — | — | 0 |
| AS394983US | AA-713-ASN - ADAMS AND ASSOCIATES INC | — | — | 0 |
| AS395014US | WELLS-ASN1 - Wells College | — | — | 0 |
| AS395033US | FIBERDROPLLC - fiberdrop, LLC | — | — | 0 |
| AS395052US | FLAPJACKS - Flapjacks LLC | — | — | 0 |
| AS395059US | BLUESTEMFIBER - Nextlink Broadband | — | — | 0 |
| AS395330US | KANTOCORP-OREGON - Kanto Corporation | — | — | 0 |
| AS395380US | GLAUKOS - Glaukos Corporation | — | — | 0 |
| AS395397US | AMENTUM-ASN - Amentum Services, Inc. | — | — | 0 |
| AS395419US | JPMORGAN-AS395419-MCX - JPMorgan Chase & Co. | — | — | 0 |
| AS395429US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS395448US | APOG-COLO-PA - Apogee Telecom Inc. | — | — | 0 |
| AS395497US | AQUASYS - Aquasys, LLC | — | — | 0 |