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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 | 21,138 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,674 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,417 |
| 256 |
| — |
| 1 |
| AS399840US | AKK-GROUP-INC - A&KK Group Inc | 256 | 1 | 2 |
| AS397786US | ASPEN-SMART-NETWORKS - Aspen Wireless Technologies Inc | 256 | 65.5K | 2 |
| AS399605US | REMEMBERTHEMILK - Remember The Milk Inc. | 256 | — | 1 |
| AS397253US | WCCLS-AS-01 - Washington County Cooperative Library Services | 256 | — | 1 |
| AS23124US | VEEAM-US2 - VEEAM SOFTWARE CORPORATION | 256 | — | 1 |
| AS394681US | SUMMITHEALTHCARE - Summit Healthcare Regional Medical Center | 256 | — | 1 |
| AS11322US | TRMC-MAIN-CAMPUS - Thibodaux Regional Medical Center | 256 | — | 1 |
| AS14514US | PHJW - Paul, Hastings, Janofsky & Walker LLP | 256 | — | 1 |
| AS36117US | RAYMO-18 - Raymour & Flanigan Furniture | 256 | — | 1 |
| AS26477US | AS-VCU - Vantage Credit Union | 256 | — | 1 |
| AS27167US | FERRUM - Ferrum College | 256 | — | 1 |
| AS13817US | CCML-ASN - Cantillon Capital Management, LLC | 256 | — | 1 |
| AS31940US | INTERNATIONAL-TELNET-INC - International Telnet Inc. | 256 | — | 1 |
| AS393615US | FASCET - Fascet LLC | 256 | — | 1 |
| AS11730US | PROGFIN - Progressive Finance | 256 | — | 1 |
| AS401740US | GLOBALAI - GlobalAI Holdings Inc. | 256 | 16 | 2 |
| AS398316US | SCTDC - SC TECHNOLOGY SERVICES LLC | 256 | — | 1 |
| AS40434US | UCIS-AS - Center for Innovation | 256 | — | 1 |
| AS20120US | CITY-ATT-FPL-MULTI - CITY FURNITURE, INC. | 256 | — | 1 |
| AS50414US | CodeBGP-Monitor ThousandEyes LLC | 256 | 3 | 4 |
| AS397926US | CCC-HOSTING-01 - Crystal Computer Consulting, Inc. | 256 | — | 1 |
| AS54267US | LAKE-TRUST-CREDIT-UNION-MULTIHOME-AS-0001 - Lake Trust Credit Union | 256 | — | 1 |
| AS398402US | TROPICAL01 - TROPICAL SHIPPING USA, LLC | 256 | — | 1 |
| AS393606US | TECHNEXUS - TechNexus LLC | 256 | — | 1 |
| AS198055US | HavenRacks HavenRacks Inc. | 256 | 1 | 2 |
| AS53305US | TNA-124-53305 - Transdev North America, Inc. | 256 | — | 1 |
| AS394645US | WORLDCINEMAINC - World Cinema Inc. | 256 | — | 1 |
| AS46127US | AS-DRSTECH - Leonardo DRS, Inc. | 256 | — | 1 |
| AS47047US | LCBS-01 - Lake County Broadband Solutions LLC | 256 | — | 1 |
| AS393350US | TELTRUST - Teltrust Corp. | 256 | — | 1 |
| AS396836US | LYMEFIBER-01 - LymeFiber | 256 | 65.5K | 2 |
| AS401061US | RGI-192-241-34-0-1 - Rogers Group, Inc. | 256 | — | 1 |
| AS14332US | SHOPZILLA - Connexity, Inc. | 256 | — | 1 |
| AS19924US | PROVIDENET - Sunset Systems | 256 | — | 1 |
| AS394389US | GLPI-001 - Gaming and Leisure Properties Inc | 256 | — | 1 |
| AS399182US | FICTIONPRESS - FICTIONPRESS INC. | 256 | — | 1 |
| AS393850US | CLEVERSAFE - IBM | 256 | — | 1 |
| AS395782US | COHR-AS-FINISAR - Finisar Corp | 256 | — | 1 |
| AS401442US | SPUR - Spur Intelligence Corporation | 256 | 2 | 3 |
| AS393353US | ACUFCU - America's Credit Union | 256 | — | 1 |
| AS398018US | WPP-IT-CHICAGO - Group M Worldwide, LLC | 256 | — | 1 |
| AS19575US | ISPNET - ISPNET Communications LLC | 256 | 65.5K | 2 |
| AS401010US | BLUEGRASSBB - Bluegrass Broadband, LLC | 256 | — | 1 |
| AS26822US | DIBC-INTERNET - DO IT BEST CORP. | 256 | — | 1 |
| AS397021US | BELTON-INDEPENDENT-SCHOOL-DISTRICT - Belton Independent School District | 256 | — | 1 |
| AS62832US | FASTMATCH-1 - Fastmatch Inc | 256 | — | 1 |