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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 | 24,749 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| 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.
32,226 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 | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| AFCONC-BLOCK1-AS - Air Force Systems Networking |
| — |
| — |
| 0 |
| AS437US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS446US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS456US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS469US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS473US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS495US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS501US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS523US | DNIC-AS-00523 - Headquarters, USAISC | — | — | 0 |
| AS524US | CIRION-524 - Cirion Technologies Solutions, LLC | — | — | 0 |
| AS537US | DNIC-AS-00537 - Headquarters, USAISC | — | — | 0 |
| AS540US | DNIC-AS-00540 - United States Department of Defense (DoD) | — | — | 0 |
| AS616US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS621US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS632US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS640US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS645US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS649US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS654US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS659US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS688US | RECNET-AS - U.S. Department of Interior Bureau of Reclamation | — | — | 0 |
| AS694US | DNIC-AS-00694 - Headquarters, USAISC | — | — | 0 |
| AS736US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS755US | MERIT-AS-21 - Merit Network Inc. | — | — | 0 |
| AS763US | IBM-PEN-TEST - IBM | — | — | 0 |
| AS794US | ORACLE-ASNBLOCK-ASN - Oracle Corporation | — | — | 0 |
| AS904US | TELARIA - Telaria LLC | — | — | 0 |
| AS908US | AS-DAVENPRO - Davenpro Enterprises LLC | — | — | 0 |
| AS1005US | LUMOS-VIRGINA - North State Telephone, LLC | — | — | 0 |
| AS1030US | DOMAIN - Domain Privacy LLC | — | — | 0 |
| AS1216US | ORACLE-OCI-IAD1 - Oracle Corporation | — | — | 0 |
| AS1244US | AMOCO-AS - Amoco Corporation | — | — | 0 |
| AS1316US | AS1316 - National Aeronautics and Space Administration | — | — | 0 |
| AS1328US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1382US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1394US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1429US | ARGUS - FriendFinder Networks Inc | — | — | 0 |
| AS1461US | DNIC-AS-01461 - Headquarters, USAISC | — | — | 0 |
| AS1465US | DNIC-ASBLK-01464-01465 - Headquarters, USAISC | — | — | 0 |
| AS1480US | DNIC-AS-01480 - Headquarters, USAISC | — | — | 0 |
| AS1496US | DNIC-ASBLK-01496-01497 - Headquarters, USAISC | — | — | 0 |
| AS1515US | DNIC-ASBLK-01513-01518 - Headquarters, USAISC | — | — | 0 |
| AS1546US | DNIC-ASBLK-01534-01546 - Headquarters, USAISC | — | — | 0 |
| AS1551US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1571US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1577US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1586US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |