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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,254 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,726 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,965 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,346 |
| — |
| — |
| 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 |
| 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 |
| AS1630US | TALEO-RND-SITE1 - Oracle Corporation | — | — | 0 |
| AS1687US | ANS-1687-AS - Verizon Business | — | — | 0 |
| AS1698US | PRODIGY - AT&T Enterprises, LLC | — | — | 0 |
| AS1765US | DNIC-AS-01765 - United States Department of Defense (DoD) | — | — | 0 |
| AS1913US | DNIC-ASBLK-01910-01914 - United States Department of Defense (DoD) | — | — | 0 |
| AS2046US | DNIC-AS-02046 - United States Department of Defense (DoD) | — | — | 0 |
| AS2142US | AS2142 - National Aeronautics and Space Administration | — | — | 0 |
| AS2145US | COUGAR-WIRELESS - Cougar Wireless | — | — | 0 |
| AS2534US | ROCHE-RSN - Hoffmann LaRoche, Inc. | — | — | 0 |
| AS2540US | INGRES-AS - Ingres Information Services | — | — | 0 |
| AS2617US | DNIC-ASBLK-02616-02620 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2618US | DNIC-ASBLK-02616-02620 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2626US | DNIC-AS-02626 - United States Department of Defense (DoD) | — | — | 0 |
| AS2689US | ATGS-MMD-AS - AT&T Enterprises, LLC | — | — | 0 |
| AS2699US | AINET-AS2699 - American Information Network | — | — | 0 |
| AS2883US | MERIT-AS-27 - Merit Network Inc. | — | — | 0 |
| AS2891US | MCI-AREA-4 - Verizon Business | — | — | 0 |
| AS2931US | BIS - Baird Information Systems | — | — | 0 |
| AS2963US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2964US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2983US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3012US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3028US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3044US | RICE-AS3044 - Rice University | — | — | 0 |
| AS3072US | AINET-AS3072 - American Information Network | — | — | 0 |