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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. | 211.2M | 21,253 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,249 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,722 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,964 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,301 |
| — |
| — |
| 0 |
| AS402166US | MANNHEIM-SD83 - Mannheim School District 83 | — | — | 0 |
| AS402207US | ALIBABA CLOUD US - Alibaba Cloud LLC | — | — | 0 |
| AS402360US | BRFLASHV - BRF | — | — | 0 |
| AS402422US | DARKSTAR-CMT - Darkstar | — | — | 0 |
| AS402449US | DALLAS - Twins | — | — | 0 |
| AS402498US | AS-CN-BYOIP - Compatible | — | — | 0 |
| AS402525US | GDOL-ASN-4AND9 - Georgia | — | — | 0 |
| AS402533US | NETWORK - Anextworks | — | — | 0 |
| AS402544US | INLETIX - Inletix | — | — | 0 |
| AS90US | SUN-AS - Oracle Corporation | — | — | 0 |
| AS144US | ATT-INTERNET - Lucent Technologies/Bell Laboratories | — | — | 0 |
| AS211US | RADC-ROME-AIR-DEVELMENT-CENTER - Rome Air Development Center | — | — | 0 |
| AS222US | SMALC-HOSTNET-AS - Air Force Systems Networking | — | — | 0 |
| AS241US | OCALC-HOSTNET-AS - Air Force Systems Networking | — | — | 0 |
| AS256US | DNIC-AS-00256 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS363US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS380US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS386US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS390US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS392US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS394US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS434US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS464US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS478US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS502US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS551US | AS551 - Parsons Corporation | — | — | 0 |
| AS618US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS641US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS650US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS686US | OSD-GW-AS - 7th Communications Group/GNE | — | — | 0 |
| AS699US | AMAZON-LEO-TERRESTRIAL - Amazon Technologies Inc. | — | — | 0 |
| AS731US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS756US | MERIT-AS-22 - Merit Network Inc. | — | — | 0 |
| AS785US | DNIC-AS-00785 - Headquarters, USAISC | — | — | 0 |
| AS1006US | RACKDOG - Rackdog, LLC | — | — | 0 |
| AS1042US | APPLE-CDN - Apple Inc. | — | — | 0 |
| AS1211US | DNIC-AS-01211 - Headquarters, USAISC | — | — | 0 |
| AS1256US | MASSNET-AS - UMASSNET | — | — | 0 |
| AS1329US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1357US | ORYX-ENERGY-AS - Oryx Energy Company | — | — | 0 |
| AS1364US | DNIC-AS-01364 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1389US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1511US | DNIC-AS-01511 - Headquarters, USAISC | — | — | 0 |
| AS1513US | DNIC-ASBLK-01513-01518 - Headquarters, USAISC | — | — | 0 |
| AS1533US | DNIC-AS-01533 - Headquarters, USAISC | — | — | 0 |
| AS1537US | DNIC-ASBLK-01534-01546 - Headquarters, USAISC | — | — | 0 |