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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,110 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,246 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,954 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,419 |
| — |
| — |
| 0 |
| AS162US | DNIC-AS-00162 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS172US | DNIC-AS-00172 - Headquarters, USAISC | — | — | 0 |
| AS184US | MERIT-AS-4 - Merit Network Inc. | — | — | 0 |
| AS198US | DNIC-AS-00198 - United States Department of Defense (DoD) | — | — | 0 |
| AS287US | DNIC-AS-00287 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS332US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS374US | BROOKS-AS - Air Force Systems Networking | — | — | 0 |
| AS383US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS419US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS422US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS423US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS458US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS462US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS482US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS486US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS498US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS506US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS550US | CORNETT-AS - Los Alamos National Laboratory | — | — | 0 |
| AS561US | HPINC-ASIAPAC - HP Inc. | — | — | 0 |
| AS594US | CENTURYLINK-LEGACY-LVLT-594 - Level 3 Parent, LLC | — | — | 0 |
| AS612US | AIRFIBER521 - AirFiber, Inc. | — | — | 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 |
| AS987US | PHIN - Hiven Labs, 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 |