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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 512 |
| — |
| 2 |
| AS393584US | NANTCLOUDSERVICESLLC - NantCloud Services LLC | 512 | — | 2 |
| AS18952US | BVR-AS - Big Valley of Pomo Indians of the Big Valley Rancheria California | 512 | — | 2 |
| AS32713US | GE-CI-LOUACCESS - General Electric Consumer Products | 512 | — | 2 |
| AS54620US | GNSGLOBAL - Generic Network Systems, LLC | 512 | — | 2 |
| AS401108US | DISCOUNT-TIRE - Discount Tire | 512 | — | 2 |
| AS53858US | BAYCARE-HEALTH-SYSTEM - Baycare Health System, Inc. | 512 | — | 1 |
| AS54906US | BENCODENTAL - Benco Dental Company | 512 | — | 2 |
| AS19768US | SCAN - SCAN Health Plan | 512 | — | 2 |
| AS32454US | PRESIDENTIAL-PRAYER-TEAM - The Presidential Prayer Team, Inc. | 512 | — | 2 |
| AS398419US | COLO-LOL - Tiny Tiny Computing | 512 | 4.1K | 3 |
| AS398732US | DPCCOMMERCIAL - Deutscher Properties Corporation | 512 | — | 1 |
| AS400480US | G12-CORE-ASN - Momentum Telecom, Inc. | 512 | — | 2 |
| AS18949US | BARTELL-CORP-INTERNET - Bartell Hotels, A California Limited Partnership | 512 | — | 1 |
| AS26940US | LEVI-STRAUSS-CO - Levi Strauss & Co. | 512 | — | 2 |
| AS62683US | PTC - PREFIL TEC, INC | 512 | — | 2 |
| AS394055US | GRAND-AVENUE-BROADBAND - CBWE Communications, LLC | 512 | — | 2 |
| AS398306US | CR-NETWORK-LLC - CR Network LLC | 512 | — | 1 |
| AS398878US | S4-PROD-INTERNET-WEST01 - Merchant-Link, LLC | 512 | — | 2 |
| AS399295US | STC-01 - Somerset Trust Company | 512 | — | 2 |
| AS54525US | AGT01 - APPLIED GLOBAL TECHNOLOGIES, LLC | 512 | — | 1 |
| AS1050US | ONVOX - Onvox LLC | 512 | 260 | 7 |
| AS394498US | YMCA-OF-THE-NORTH - YMCA of the North | 512 | 1 | 3 |
| AS15025US | AS-BARTOW - City of Bartow | 512 | — | 2 |
| AS46218US | COMPORIUM-AS-2 - Comporium, Inc | 512 | 65.5K | 6 |
| AS400313US | APOG-UNA - Apogee Telecom Inc. | 512 | — | 1 |
| AS36649US | RIUS - RIVERSTONE INTERNATIONAL U.S., LLC | 512 | — | 2 |
| AS400554US | STRICITY - Stricity LLC | 512 | 256 | 3 |
| AS398485US | DFINITY-NET - DFINITY USA Research, LLC | 512 | 4.1K | 5 |
| AS400444US | MAGNERA-NA1 - Magnera Corporation | 512 | — | 2 |
| AS25711US | VMC-PELLA-AS - Vermeer Manufacturing Company | 512 | — | 2 |
| AS27226US | HARBOURVEST - Harbourvest Partners, LLC | 512 | — | 2 |
| AS4563US | BTMU-AMERICA - MUFG Bank Ltd. | 512 | — | 2 |
| AS112US | AS112-PROJECT - DNS-OARC | 512 | 2 | 4 |
| AS30680US | FISCOM-COLO5-JAX-FL - Fidelity National Information Services, Inc. | 512 | — | 2 |
| AS36313US | LTICTASN01 - Lendingtools.com Inc. | 512 | — | 2 |
| AS32579US | CITY-OF-VALLEJO - City of Vallejo, A municipal corporation | 512 | — | 2 |
| AS31883US | TIM-2300 - Thornburg Investment Management Inc. | 512 | — | 2 |
| AS401706US | VALLEY-SMART-HOMES - Valley Smart Homes | 512 | 4.1K | 3 |
| AS401081US | OPENINFRA-FL - Open Infra Inc. | 512 | — | 2 |
| AS13516US | CTCA1336 - Cancer Treatment Centers of America, Inc. | 512 | — | 2 |
| AS32368US | MOUSER-ELECTRONICS - mouser electronics | 512 | — | 2 |
| AS10905US | MTVI-AS - Mobile Technology Ventures Inc | 512 | — | 2 |
| AS54468US | CHMCA - Children's Hospital Medical Center of Akron | 512 | — | 2 |
| AS394376US | CAMTECH-BROADBAND - CamTech Broadband | 512 | — | 1 |
| AS11235US | ITRONHOSTINGAS - Itron-Hosting | 512 | — | 2 |
| AS27390US | ALGAS - Fred Alger & Co Inc. | 512 | — | 2 |