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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,247 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,189 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,901 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,010 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,222 |
| 2.3K |
| — |
| 5 |
| AS399307US | STERLING-MA - Town of Sterling | 2.3K | 65.5K | 4 |
| AS22237US | TSDC-AS - Technology Solutions of SC Inc. | 2.3K | — | 9 |
| AS30076US | TEGRIA-ASN - Tegria Services Group - US, Inc. | 2.3K | — | 5 |
| AS40943US | RURALBROADBAND - Rural Broadband, L.L.C. | 2.3K | 65.5K | 4 |
| AS27200US | SOCIETY-OF-AUTOMOTIVE-ENGINEERS - Society of Automotive Engineers | 2.3K | — | 2 |
| AS19453US | TWRS-RI - Towerstream I, Inc. | 2.3K | — | 2 |
| AS399584US | LIBERTY-BROADBAND - Liberty Broadband LLC | 2.3K | 4.1K | 6 |
| AS485US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 2.3K | — | 5 |
| AS401350US | CONEXON-CONNECT-2 - Conexon Connect | 2.3K | 65.5K | 5 |
| AS394859US | VBCS - Valparaiso Broadband Communication Systems | 2.3K | 65.5K | 10 |
| AS4954US | CARR - Carroll County Government | 2.3K | — | 6 |
| AS2941US | ONEPA-DUFVA - OnePartner, LLC | 2.3K | — | 3 |
| AS395922US | GCET-GREENFIELD-MA - GCET | 2.3K | — | 2 |
| AS20096US | AMS-MIP-CA - HEWLETT PACKARD ENTERPRISE COMPANY | 2.3K | — | 3 |
| AS396431US | T38FAX-ASN-1 - T38Fax Incorporated | 2.3K | 3 | 9 |
| AS395565US | MIEMX - Mexico Internet Exchange | 2.3K | — | 7 |
| AS394353US | BROOT-AS - B.Root-Server-OPS | 2.3K | 44 | 21 |
| AS397092US | BAYS-ET-HIGHSPEED - Bays ET highspeed LLC | 2.3K | — | 4 |
| AS16640US | SILICON-VALLEY-BANK - First-Citizens Bank & Trust Company | 2.3K | — | 9 |
| AS19602US | AS19602 - Cantor Fitzgerald & Co. | 2.3K | — | 9 |
| AS31770US | CMMC-I2 - Ann & Robert H. Lurie Children's Hospital of Chicago | 2.3K | — | 9 |
| AS20314US | ISP-ROUTER - Conagra Brands Inc. | 2.3K | — | 7 |
| AS394130US | STEALTHBYTE - StealthByte Network LLC | 2.3K | — | 5 |
| AS402219US | UNION-RIVER-TEL - The Union River Telephone Company | 2.3K | 65.5K | 3 |
| AS62672US | STREAMWIDE-INC - Streamwide Inc. | 2.3K | 7 | 16 |
| AS23286US | HULU - Hulu, LLC | 2.3K | — | 6 |
| AS51082US | ISP-A1-Internet SPUZE LLC | 2.3K | 524.3K | 11 |
| AS53568US | FRANKLIN-UNIVERSITY - Franklin University | 2.3K | — | 4 |
| AS20460US | MYTHOSTECH - TFB NET | 2.3K | — | 9 |
| AS7253US | MAINSTAY-COMMUNICATIONS - Mainstay Communications | 2.3K | — | 2 |
| AS33741US | DENNIS-GROUP - Dennis Group | 2.3K | 276 | 9 |
| AS63383US | SINGLE-DIGITS - Single Digits, Inc. | 2.3K | — | 9 |
| AS25896US | IPC-NETWORK-SERVICES-INC - IPC Network Services Inc. | 2.3K | — | 9 |
| AS32461US | ARSPL - ARE-East River Science Park, LLC | 2.3K | — | 9 |
| AS22213US | SALK-AS - Salk Institute | 2.3K | — | 9 |
| AS400424US | OXIO-1 - OXIO | 2.3K | 34 | 10 |
| AS71US | HPINC-AMERICAS - HP Inc. | 2.3K | 2 | 11 |
| AS17274US | RWBAIRD - Robert W. Baird & Co. Incorporated | 2.3K | — | 6 |
| AS46576US | LOEWS-HOTELS-ORLANDO - Loews Hotels at Universal Orlando | 2.3K | — | 9 |
| AS393341US | SPOKANE-COUNTY - Spokane County | 2.3K | 1 | 3 |
| AS397006US | MULLCLOUD - Mullcloud LLC | 2.3K | 266.2K | 4 |
| AS55011US | EFOLDER - eFolder, Inc | 2.3K | — | 9 |
| AS396860US | MORNET-COMMUNICATIONS - MORnet Communications, LLC | 2.3K | — | 6 |
| AS395973US | GOOGLE-2 - Google LLC | 2.3K | 28 | 37 |
| AS400043US | IBRIDGE-01 - IBRIDGE CLOUD TECHNOLOGIES, INC | 2.3K | — | 6 |
| AS14746US | NOCTEL - NocTel Communications, Inc. | 2.3K | 2 | 11 |