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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,143 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,820 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,994 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,278 |
| — |
| — |
| 0 |
| AS6576US | MCC-SUM - SUMMIT COMMUNICATIONS SYSTEM, INC. | — | — | 0 |
| AS6442US | GLOBALLINK-ASN - Global Link Information Network | — | — | 0 |
| AS476US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS207556US | SERVERFORGE - ServerForge LLC | — | 64 | 1 |
| AS6230US | GANET - Global Access Network | — | — | 0 |
| AS401637US | APRILNEA - AprilNEA LLC | — | 1 | 1 |
| AS6177US | COGENT-6177 - Cogent Communications, LLC | — | — | 0 |
| AS206493US | YUKI-SYSTEMS-AS Alexander Neustadter | — | 1 | 1 |
| AS5930US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6314US | CDC-AS - Chattanooga Data Connection, Inc. | — | — | 0 |
| AS6073US | ETI - KAPS, Inc | — | — | 0 |
| AS398325US | SALTANT-SOLUTIONS - Saltant Solutions LLC | — | 512 | 2 |
| AS7814US | CNS-NETWORK - Chenango Net Services | — | — | 0 |
| AS7405US | GENUITY-XATL - Genuity Inc. | — | — | 0 |
| AS387US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS5936US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS212996US | ZEROAV-CUST Zero Attack Vector LLC | — | 65.8K | 3 |
| AS6007US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS396931US | HOSTROYALE-TECHNOLOGIES-02 - HostRoyale LLC | — | 524.3K | 1 |
| AS5902US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS402339US | DISASTERTRIDENT-NETWORKS - DisasterTrident | — | 1 | 1 |
| AS1543US | DNIC-ASBLK-01534-01546 - Headquarters, USAISC | — | — | 0 |
| AS402667US | CL-2372-AS-1 - Croan, | — | 256 | 1 |
| AS1450US | DNIC-AS-01450 - Headquarters, USAISC | — | — | 0 |
| AS1260US | PLE - Air Force Systems Networking | — | — | 0 |
| AS1036US | APPLE-RETAIL - Apple Inc. | — | — | 0 |
| AS733US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS1727US | DNIC-AS-01727 - United States Department of Defense (DoD) | — | — | 0 |
| AS21687US | AS21687 - Crown Castle Fiber LLC | — | 1.5K | 3 |
| AS479US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS10941US | TECHCOM-1 - Genuine Telecom | — | 256 | 1 |
| AS440US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS3753US | NSCEE - National Supercomputing Center for Energy and the Environment | — | — | 0 |
| AS3680US | NOVELL - Micro Focus | — | — | 0 |
| AS3483US | COGENT-3483 - Cogent Communications, LLC | — | — | 0 |
| AS6414US | IPNET - Thurber Technology Group | — | — | 0 |
| AS139242US | CSL-AS-AP - Cloudflare Sydney, LLC | — | 2 | 2 |
| AS2644US | SMARTS-AS - System Management ARTS, Inc. | — | — | 0 |
| AS26636US | QUICKPACKET-3 - QuickPacket, LLC | — | 4.1K | 1 |
| AS2741US | DNIC-AS-02741 - United States Department of Defense (DoD) | — | — | 0 |
| AS2979US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2985US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS402368US | HOSTGSM-NET - hostgsm.com | — | — | 0 |
| AS2881US | RHGC-AS - Rensselaer Hartford Graduate Center | — | — | 0 |
| AS395661US | USENET-SOLUTIONS - Usenet Solutions LLC | — | 3 | 3 |
| AS402134US | WPP-ET-CAMPUS-MUMBAI - The Ogilvy Group, LLC | — | — | 0 |