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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 |
| — |
| — |
| 0 |
| AS1804US | COGENT-1804 - Cogent Communications, LLC | — | — | 0 |
| AS1805US | COGENT-1805 - Cogent Communications, LLC | — | — | 0 |
| AS1810US | DXC-AS1810-AS1815 - DXC US Latin America Corporation | — | — | 0 |
| AS1844US | AS1843-7 - National Aeronautics and Space Administration | — | — | 0 |
| AS1925US | DNIC-AS-01925 - United States Department of Defense (DoD) | — | — | 0 |
| AS1927US | DNIC-AS-01927 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1971US | DNIC-AS-01971 - United States Department of Defense (DoD) | — | — | 0 |
| AS1992US | DNIC-AS-01992 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2053US | SPRINTCORP1 - Sprint Enterprise Information Services | — | — | 0 |
| AS2173US | HPINC - HP Inc. | — | — | 0 |
| AS2533US | HOU-METRO-AS - MIS Group | — | — | 0 |
| AS2548US | ALGX-ATCW-AS - Verizon Business | — | — | 0 |
| AS2574US | TRS - Teacher Retirement System of Texas | — | — | 0 |
| AS2645US | ASN-CAVENET - The Commnet Project | — | — | 0 |
| AS2690US | ATGS-MMD-AS - AT&T Enterprises, LLC | — | — | 0 |
| AS2691US | ATGS-MMD-AS - AT&T Enterprises, LLC | — | — | 0 |
| AS2712US | HALLIBURTON COMPANY - Halliburton Company | — | — | 0 |
| AS2737US | ING-AMERICAS-WHOLESALE - ING Financial Services, LLC | — | — | 0 |
| AS2747US | AF-PROTEUS - Air Force Systems Networking | — | — | 0 |
| AS2758US | MCI-NETB - Verizon Business | — | — | 0 |
| AS2880US | NIIT - National Information Infrastructure Testbed | — | — | 0 |
| AS2937US | NERSC - National Energy Research Scientific Computing Center | — | — | 0 |
| AS2954US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2970US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2988US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3054US | FIRST-FLOOR - First Floor, Inc. | — | — | 0 |
| AS3069US | AINET-AS3069 - American Information Network | — | — | 0 |
| AS3123US | MAGIC-INTRNL - General Magic, Inc. | — | — | 0 |
| AS3139US | ASEE - American Society fro Engineering Education | — | — | 0 |
| AS3143US | VANET - U.S. Department of Veterans Affairs | — | — | 0 |
| AS3146US | DMSSC - Scientific Application International Corp. (SAIC) | — | — | 0 |
| AS3394US | ELPRESS-AS - Electric Press, Inc. | — | — | 0 |
| AS3434US | ESNET-AS - ESnet | — | — | 0 |
| AS3461US | GONZAGA-ASN - Gonzaga College High School | — | — | 0 |
| AS3502US | INTNET - Big Sky Services, Inc. | — | — | 0 |
| AS3504US | MWDSOCA - Metropolitan Water District of Southern California | — | — | 0 |
| AS3511US | INFONET - INFONET | — | — | 0 |
| AS3518US | DSI-WR - RTX BBN Technologies, Inc. | — | — | 0 |
| AS3523US | DSI-WR - RTX BBN Technologies, Inc. | — | — | 0 |
| AS3567US | AGATE - Agate, Inc. | — | — | 0 |
| AS3613US | DELL-BLK - Dell, Inc. | — | — | 0 |
| AS3617US | MCIASN-BLK - Verizon Business | — | — | 0 |
| AS3646US | COGENT-3646 - Cogent Communications, LLC | — | — | 0 |
| AS3670US | OPTIMUM-AS - Optimum Group | — | — | 0 |
| AS3677US | UIOWA-EXTERNAL - University of Iowa | — | — | 0 |
| AS3679US | SKYPOINT-NET - Skypoint Communications, Inc. | — | — | 0 |