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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| — |
| — |
| 0 |
| AS720US | WR-LOGDIS-AS - Air Force Systems Networking | — | — | 0 |
| AS732US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS768US | DNIC-AS-00768 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1295US | BGNOGE - General Electric Company | — | — | 0 |
| AS1317US | DNIC-AS-01317 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1332US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1359US | INPO - Institute of Nuclear Power Operations, Inc. | — | — | 0 |
| AS1368US | DNIC-AS-01368 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1454US | DNIC-ASBLK-01451-01456 - Headquarters, USAISC | — | — | 0 |
| AS1460US | DNIC-ASBLK-01458-01460 - Headquarters, USAISC | — | — | 0 |
| AS1499US | DNIC-ASBLK-01498-01499 - Headquarters, USAISC | — | — | 0 |
| AS1521US | DNIC-AS-01521 - Headquarters, USAISC | — | — | 0 |
| AS1548US | DNIC-ASBLK-01548-01549 - Headquarters, USAISC | — | — | 0 |
| AS1576US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1583US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1750US | GURU - Hitachi Computer Products Inc. | — | — | 0 |
| AS1762US | DMIS-VAX - ACS National Systems, Inc. | — | — | 0 |
| AS1779US | PSTAR-AS - Pentastar Services, Inc. | — | — | 0 |
| AS1791US | COGENT-1791 - Cogent Communications, LLC | — | — | 0 |
| AS1794US | COGENT-1794 - Cogent Communications, LLC | — | — | 0 |
| AS1800US | COGENT-1800 - Cogent Communications, LLC | — | — | 0 |
| AS1815US | DXC-AS1810-AS1815 - DXC US Latin America Corporation | — | — | 0 |
| AS1834US | DNIC-AS-01834 - United States Department of Defense (DoD) | — | — | 0 |
| AS1838US | CERFNET-2 - AT&T Enterprises, LLC | — | — | 0 |
| AS1924US | DAFFY - Unified Industries, Inc. | — | — | 0 |
| AS1934US | ANS-RESTON-AS - Verizon Business | — | — | 0 |
| AS1977US | DNIC-AS-01977 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2008US | INFONET4 - INFONET Services Corporation | — | — | 0 |
| AS2555US | INTER-GRP-B - Cogent Communications, LLC | — | — | 0 |
| AS2584US | CUMMINS - Cummins Inc. | — | — | 0 |
| AS2628US | DNIC-AS-02628 - United States Department of Defense (DoD) | — | — | 0 |
| AS2693US | ATGS-MMD-AS - AT&T Enterprises, LLC | — | — | 0 |
| AS2913US | CITI6 - Citigroup Inc. | — | — | 0 |
| AS2940US | NET-UEN-UTAH - Utah Education Network | — | — | 0 |
| AS2950US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2955US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2971US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2980US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3003US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3007US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3014US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3018US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3029US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3052US | RICE-AS3052 - Rice University | — | — | 0 |
| AS3125US | MAGIC-INTRNL - General Magic, Inc. | — | — | 0 |
| AS3419US | DNIC-AS-03419 - United States Department of Defense (DoD) | — | — | 0 |