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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| — |
| — |
| 0 |
| AS726US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | — | — | 0 |
| AS741US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS767US | DNIC-AS-00767 - United States Department of Defense (DoD) | — | — | 0 |
| AS784US | HJFNET-AS - Henry M. Jackson Foundation for The Advancement of Military Medicine | — | — | 0 |
| AS788US | DNIC-AS-00788 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS854US | MINNEAPOLIS-IXP - Richmond-IX Corporation | — | — | 0 |
| AS928US | GVVME2 - GVVME | — | — | 0 |
| AS944US | BLAZINGBYTE - Blazing Byte, Inc. | — | — | 0 |
| AS1243US | DNIC-AS-01243 - Headquarters, USAISC | — | — | 0 |
| AS1254US | AS1254 - National Aeronautics and Space Administration | — | — | 0 |
| AS1354US | NEXT-ASN-AS - NeXT Software, Inc | — | — | 0 |
| AS1366US | DNIC-AS-01366 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1371US | DNIC-AS-01371 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1372US | DNIC-AS-01372 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1373US | DNIC-AS-01373 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1374US | DNIC-AS-01374 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1390US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1398US | T2-JC-PN - Charles Schwab & Co., Inc. | — | — | 0 |
| AS1433US | NEEV-SUPERCLOUD - Neev Supercloud LLC | — | — | 0 |
| AS1462US | DNIC-ASBLK-01462-01463 - Headquarters, USAISC | — | — | 0 |
| AS1490US | 20THSUPCOM - Headquarters, USAISC | — | — | 0 |
| AS1507US | DNIC-AS-01507 - Headquarters, USAISC | — | — | 0 |
| AS1509US | DNIC-ASBLK-01509-01510 - Headquarters, USAISC | — | — | 0 |
| AS1591US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1593US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1658US | NMI-NET - Network Management, Inc. | — | — | 0 |
| AS1672US | ANS-CHICAGO - Verizon Business | — | — | 0 |
| AS1677US | ANS-NY3-AS - Verizon Business | — | — | 0 |
| AS1682US | AOL-1682-AS - Yahoo Holdings Inc. | — | — | 0 |
| AS1685US | ANS-JAPAN - Verizon Business | — | — | 0 |
| AS1787US | THOMSON-REUTERS - Thomson Reuters U.S. LLC | — | — | 0 |
| AS1793US | COGENT-1793 - Cogent Communications, LLC | — | — | 0 |
| AS1919US | UMASSNET-AS1919 - UMASSNET | — | — | 0 |
| AS1920US | RADIANZ-AS-1920 - BT Americas, Inc | — | — | 0 |
| AS2137US | DNIC-AS-02137 - United States Department of Defense (DoD) | — | — | 0 |
| AS2157US | HPINC - HP Inc. | — | — | 0 |
| AS2536US | TCADA - Texas Commission on Alcohol & Drug Abuse | — | — | 0 |
| AS2714US | GSA-GOV - General Services Administration | — | — | 0 |
| AS2720US | PARKE-38 - Parked.com, LTD | — | — | 0 |
| AS2751US | ATT-PARADYNE - AT&T Paradyne | — | — | 0 |
| AS2910US | CITI3 - Citigroup Inc. | — | — | 0 |
| AS2945US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2947US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2989US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3033US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3045US | RICE-AS3045 - Rice University | — | — | 0 |