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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS5959US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5936US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6156US | SPRINTLINK-NYSERNET7 - SPRINT, Business Serices Group | — | — | 0 |
| AS5869US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS403147US | DJBOOYA-NETWORKS-01 - UG | — | 1 | 1 |
| AS5863US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS394082US | GOOGLE-PEER - rootcloud LLC | — | 2.6M | 5 |
| AS398515US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS6926US | SOLLUNA-AS - Solluna | — | — | 0 |
| AS6616US | DATASTAR - Datastar, Inc. | — | — | 0 |
| AS6593US | CITIZEN1 - Citizen 1 Software | — | — | 0 |
| AS6390US | KANSASCITY - The Kansas City Star | — | — | 0 |
| AS6414US | IPNET - Thurber Technology Group | — | — | 0 |
| AS6374US | MFS-WEST-AS - MFS Global Network Services, Inc. | — | — | 0 |
| AS401647US | FRO - Fro LLC | — | 4.1K | 1 |
| AS4183US | UUNET-MCIWCOM - Verizon Business | — | — | 0 |
| AS4360US | AGNES-SCOTT - Agnes Scott College | — | — | 0 |
| AS4264US | CERNET-ASN-BLOCK - California Education and Research Federation Network | — | — | 0 |
| AS2974US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS1597US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1666US | VFN-MEMBERS - Verizon Business | — | — | 0 |
| AS1550US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS11021US | NVH-ASN - North Valley Hospital | — | 256 | 1 |
| AS3619US | MCIASN-BLK - Verizon Business | — | — | 0 |
| AS1467US | DNIC-ASBLK-01467-01468 - Headquarters, USAISC | — | — | 0 |
| AS3761US | UTOPIA-FIBER-IT - UTOPIA | — | — | 0 |
| AS3664US | DNIC-ASBLK-03664-03667 - United States Department of Defense (DoD) | — | — | 0 |
| AS3463US | LOGIN-NONAZ - Login, Inc. | — | — | 0 |
| AS400148US | BULK-SOLUTIONS-01 - Bulk Solutions, LLC | — | 256 | 1 |
| AS3153US | FEMANET - Federal Emergency Management Agency | — | — | 0 |
| AS398565US | PETERJIN - Peter Jin Technologies LLC | — | 2 | 2 |
| AS751US | MERIT-AS-17 - Merit Network Inc. | — | — | 0 |
| AS399779US | MOCIX - HYEHOST LLC | — | 1 | 1 |
| AS2916US | CYBER-AS - Creative Cybernetics | — | — | 0 |
| AS2911US | CITI4 - Citigroup Inc. | — | — | 0 |
| AS182US | MERIT-AS-2 - Merit Network Inc. | — | — | 0 |
| AS236US | MERIT-AS-13 - Merit Network Inc. | — | — | 0 |
| AS118US | DNIC-AS-00118 - United States Department of Defense (DoD) | — | — | 0 |
| AS403201US | STEFAN - Austin | — | 1 | 1 |
| AS402925US | ZENTRO-INTERNET-FLORIDA - Everywhere | — | — | 0 |
| AS403183US | CORNINGCU-01 - Corning | — | — | 0 |
| AS403018US | TITANFORGE - NodeNinja | — | — | 0 |
| AS402989US | BMWOODS-01 - Brandermill | — | — | 0 |
| AS1340US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS598US | CENTURYLINK-LEGACY-LVLT-598 - Level 3 Parent, LLC | — | — | 0 |
| AS1320US | DNIC-AS-1320 - Navy Network Information Center (NNIC) | — | — | 0 |