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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 |
| AS401519US | SUNOAKI-NET-CCH - Sunoaki Network LLC | — | 2 | 2 |
| AS5246US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS3761US | UTOPIA-FIBER-IT - UTOPIA | — | — | 0 |
| AS3619US | MCIASN-BLK - Verizon Business | — | — | 0 |
| AS3612US | DELL-BLK - Dell, Inc. | — | — | 0 |
| AS5150US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS36096US | PAGEROUS - PAGEROUS, LLC | — | 2 | 2 |
| AS3928US | VALLEY-TECH - Valley Tech Corporation | — | — | 0 |
| AS11021US | NVH-ASN - North Valley Hospital | — | 256 | 1 |
| AS397785US | TISTLASN01 - Tortoise Capital Advisors, L.L.C. | — | — | 0 |
| AS4369US | IQUEST-ASN - InterQuest Inc. | — | — | 0 |
| AS4288US | CENTURYLINK-TSDS-NCJCVL - CenturyLink Communications, LLC | — | — | 0 |
| AS4264US | CERNET-ASN-BLOCK - California Education and Research Federation Network | — | — | 0 |
| AS396752US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396767US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396694US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS200766US | BROWN-AS Kerry Lynn brown jr | — | 274 | 4 |
| AS396058US | INFRAPOINT - dcBLOX, Inc. | — | — | 0 |
| AS396581US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396453US | VENUS-PEAK10 - Venus Fashion, Inc. | — | — | 0 |
| AS5900US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6570US | CNCS - AmeriCorps | — | 256 | 1 |
| AS581US | AMC-MAF-C2-ENCLAVES - Air Force Systems Networking | — | — | 0 |
| AS1060US | SUNWEST-BANK - Sunwest Bank | — | — | 0 |
| AS689US | MERIT-AS-31 - Merit Network Inc. | — | — | 0 |
| AS626US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS459US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS575US | DNIC-AS-00575 - Headquarters, USAISC | — | 256 | 1 |
| AS418US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS210066US | ANYCORE Anycore Inc | — | 1 | 1 |
| AS4873US | EATON-CORPORATION-2 - Eaton Corporation | — | — | 0 |
| AS5936US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5902US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS399154US | SECURITYSERVICES - Vercara, LLC | — | 256 | 1 |
| AS5768US | ICANECT - ICANECT | — | — | 0 |
| AS5948US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5712US | RCN-AS4 - RCN | — | — | 0 |
| AS197137US | YUNHU-NETWORKS-LLC YUNHU NETWORKS LLC | — | 2 | 2 |
| AS6380US | BELLSOUTH-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5336US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS6415US | SILICONREEF - Silicon Reef, Inc. | — | — | 0 |
| AS6414US | IPNET - Thurber Technology Group | — | — | 0 |
| AS6277US | COGENT-6277 - Cogent Communications, LLC | — | — | 0 |
| AS6317US | MILLENNIANET - MillenniaNet, LLC | — | — | 0 |
| AS6202US | NEXTRON - IMV/Internet | — | — | 0 |
| AS11006US | HRT-SCS - HRTec | — | 65.7K | 2 |