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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 | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 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 | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| — |
| — |
| 0 |
| AS411US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS414US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS435US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS449US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS483US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS555US | VTSII - Velocity Technology Solutions, Inc | — | — | 0 |
| AS605US | VHS-CHIL - Vanguard Health Management, Inc. | — | — | 0 |
| AS623US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS674US | AINET-AS674 - American Information Network | — | — | 0 |
| AS744US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS746US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS750US | MERIT-AS-16 - Merit Network Inc. | — | — | 0 |
| AS759US | MERIT-AS-25 - Merit Network Inc. | — | — | 0 |
| AS769US | DNIC-AS-00769 - United States Department of Defense (DoD) | — | — | 0 |
| AS890US | EXTERNAL-ASN-HSD-01 - Hermiston School District 8R | — | — | 0 |
| AS895US | FASTLY-NET - Fastly, Inc. | — | — | 0 |
| AS938US | FM-ARIN - Fergus Euan McKay, Sole Proprietorship | — | — | 0 |
| AS990US | INDEX-SF - Index Ventures | — | — | 0 |
| AS1022US | LDCL-SJC - LAKSH CYBERSECURITY AND DEFENSE LLC | — | — | 0 |
| AS1046US | FIBERIFI - Fiberifi | — | — | 0 |
| AS1069US | DATACANOPY - Sidus Group, LLC | — | — | 0 |
| AS1079US | PROT-DEFAULT-ASN - Protera Technologies, LLC | — | — | 0 |
| AS1264US | USACESPK-AS - Headquarters, USAISC | — | — | 0 |
| AS1278US | UNIONCARBIDE-AS - Union Carbide Corporation | — | — | 0 |
| AS1281US | COGENT-1281 - Cogent Communications, LLC | — | — | 0 |
| AS1338US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1376US | DNIC-AS-01376 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1384US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1457US | DNIC-AS-01457 - Headquarters, USAISC | — | — | 0 |
| AS1459US | DNIC-ASBLK-01458-01460 - Headquarters, USAISC | — | — | 0 |
| AS1472US | DNIC-ASBLK-01471-01472 - Headquarters, USAISC | — | — | 0 |
| AS1481US | CTNOSC-ASN-1481 - Headquarters, USAISC | — | — | 0 |
| AS1498US | DNIC-ASBLK-01498-01499 - Headquarters, USAISC | — | — | 0 |
| AS1510US | DNIC-ASBLK-01509-01510 - Headquarters, USAISC | — | — | 0 |
| AS1588US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1606US | EXCEL-ASN - Excelenet, Inc | — | — | 0 |
| AS1641US | STAPLES-SPP - Staples Contract & Commercial, Inc. | — | — | 0 |
| AS1737US | RAYTHEON-AS-1 - Raytheon Company | — | — | 0 |
| AS1740US | CERFNET - AT&T Enterprises, LLC | — | — | 0 |
| AS1743US | MCI-SF-AS - Verizon Business | — | — | 0 |
| AS1775US | FMCC-1 - Ford Motor Credit Corporation | — | — | 0 |
| AS1785US | AS-PAETEC-NET - Windstream Communications LLC | — | — | 0 |
| AS1796US | GRADED-LABS-LLC - Graded Labs, LLC | — | — | 0 |
| AS1811US | DXC-AS1810-AS1815 - DXC US Latin America Corporation | — | — | 0 |
| AS1817US | AS-SCSENGINEERS - STEARNS, CONRAD AND SCHMIDT, CONSULTING ENGINEERS, INC. | — | — | 0 |
| AS1863US | DISN-PILOTNET9 - RTX BBN Technologies, Inc. | — | — | 0 |