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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. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,202 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| REDCOATS - Red Coats, Inc |
| 256 |
| — |
| 1 |
| AS53634US | AMDAF-AS - AM-DAF | 256 | — | 1 |
| AS23507US | AVSISP - AV SERVICES LLC | 256 | — | 1 |
| AS62971US | COUNTY-OF-CHESTERFIELD-VA - County of Chesterfield | 256 | — | 1 |
| AS402515US | PROTOTYPAL - Prototypal, | 256 | 256 | 2 |
| AS397841US | 5150 - New Mexico Orthopaedics Associates PC | 256 | — | 1 |
| AS394834US | CENGAGE-NYNYC - Cengage Learning, Inc. | 256 | — | 1 |
| AS32769US | MCFA - MITSUBISHI LOGISNEXT AMERICAS INC | 256 | — | 1 |
| AS396525US | GDF-IL01 - Grecian Delight Foods, Inc | 256 | — | 1 |
| AS395352US | CAC-GR1 - Credit Acceptance Corporation | 256 | — | 1 |
| AS399979US | AS-493NETWORKING - 49.3 Networking LLC | 256 | — | 1 |
| AS5098US | OPUSONE-NETS - Opus One Winery, LLC | 256 | — | 1 |
| AS26502US | MOMEN-5-ASN - Momentum Telecom, Inc. | 256 | — | 1 |
| AS396189US | ABI - ABI Research | 256 | — | 1 |
| AS393554US | KELLERAMERICAS - Keller Foundations, LLC | 256 | — | 1 |
| AS399053US | ENTHQ-01 - Ent Credit Union | 256 | — | 1 |
| AS22989US | FREEASINFREEDOM - Free Software Foundation, Inc. | 256 | 1 | 2 |
| AS62673US | SHRZ - Schurz Communications Inc. | 256 | — | 1 |
| AS63301US | GSR-ARIN-01 - MEI-GSR Holdings, LLC | 256 | — | 1 |
| AS393816US | RMATV - Rocky Mountain ATV INC. | 256 | — | 1 |
| AS394337US | SIMEON - Simeon Networks LLC | 256 | — | 1 |
| AS19532US | TRILLIANTNC - Trilliant Networks Inc. | 256 | 1 | 2 |
| AS15120US | RHS-AS - Rockford Health System | 256 | — | 1 |
| AS21935US | EPSILONDATA50 - Epsilon Data Management LLC | 256 | — | 1 |
| AS398198US | MORAE-GLOBAL-CE - Morae Global | 256 | — | 1 |
| AS11916US | UNDP - UNDP | 256 | — | 1 |
| AS401357US | SOLID-ROCK-NETWORK - Solid Rock Network LLC | 256 | 256 | 2 |
| AS21673US | NGMC-ASN - Northeast Georgia Medical Center, Inc. | 256 | — | 1 |
| AS37935US | KYNDRYLINC-AS-AP - Kyndryl INC | 256 | — | 1 |
| AS23301US | WISC-INVESTMENT-BOARD - State of Wisconsin Investment Board | 256 | — | 1 |
| AS22420US | RWNY-AS - Resorts World Casino New York City | 256 | — | 1 |
| AS393551US | LON-DC-01 - Exiger LLC | 256 | — | 1 |
| AS401006US | DEEPINTENT - DeepIntent, Inc. | 256 | — | 1 |
| AS10919US | TROYFP - Troy Corporation | 256 | — | 1 |
| AS402259US | AS-ZT - ZT Enterprises LLC | 256 | 256 | 2 |
| AS29816US | SWA-MKT-INET-2 - Southwest Airlines Co. | 256 | — | 1 |
| AS400836US | SLG-OMA - SL Green Realty Corp | 256 | — | 1 |
| AS36434US | EPPLP - Enterprise Products Company | 256 | — | 1 |
| AS29875US | CPLSW-AS - Clinical Pathology Laboratories | 256 | — | 1 |
| AS32876US | LYCOMING-COLLEGE - Lycoming College | 256 | — | 1 |
| AS46134US | AAA-MWG-UT - AAA-Arizona, Inc. | 256 | — | 1 |
| AS53655US | ACCTL - Advanced Call Center Technologies, LLC | 256 | — | 1 |
| AS33037US | ANTHEMCONNECT - Anthem Broadband | 256 | 4.1K | 2 |
| AS13801US | CONCORD-CARLISLE-MA - Concord-Carlisle Regional School District | 256 | — | 1 |
| AS393244US | AS-OVERLAKE - Overlake Hospital Medical Center | 256 | — | 1 |
| AS23245US | EADS-NORTH-AMERICA--AS01 - Airbus Defense and Space, Inc. | 256 | — | 1 |
| AS393795US | PTCT - PTC Therapeutics, Inc | 256 | — | 1 |