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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 | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| — |
| 0 |
| AS402502US | JDGI - J | — | — | 0 |
| AS402528US | US-RDC-DC1-P1 - RedCell | — | — | 0 |
| AS402538US | TABMAC - Tabmac | — | — | 0 |
| AS402588US | LINDRIS - Lindris | — | — | 0 |
| AS402594US | SENDLAYER - SendLayer, | — | — | 0 |
| AS402597US | DBH-CORP - Blick | — | — | 0 |
| AS402621US | NEXTTHINKLAB - Nextthinklabs | — | — | 0 |
| AS402655US | APLSL - Atlas | — | — | 0 |
| AS402658US | COMPUSERVE-LIMITED - Compuserve | — | — | 0 |
| AS402665US | SLA - SLA | — | — | 0 |
| AS402706US | YAKUTAT-TLINGIT-TRIBE - Yakutat | — | — | 0 |
| AS402711US | AS-IL-01 - Valor | — | — | 0 |
| AS402730US | OBJECTZIA-CORE - ObjectZIA | — | — | 0 |
| AS402765US | XU-YANQING-01 - BuyVirt | — | — | 0 |
| AS402773US | KOULANDHOST - KOULAND | — | — | 0 |
| AS402776US | GLASSPEARL - GlassPearl | — | — | 0 |
| AS402804US | QUESTBLUE-3100-01 - QuestBlue | — | — | 0 |
| AS402813US | REDCOYOTE - RED | — | — | 0 |
| AS402817US | HAZARD-HOSTS - Hazard | — | — | 0 |
| AS402831US | SGMCNET - SGMC | — | — | 0 |
| AS402841US | TOPDAR-AS-1 - TOPDAR | — | — | 0 |
| AS402854US | RELCOMM-01 - Rel | — | — | 0 |
| AS402872US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402879US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402884US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402885US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402908US | RACKWORKS-LLC - RackWorks | — | — | 0 |
| AS402909US | VERDA-US-01 - Verda | — | — | 0 |
| AS402914US | NAT-SOLUTIONS - NAT | — | — | 0 |
| AS402964US | EMORY-HENRY-UNIVERSITY - Emory | — | — | 0 |
| AS402979US | VSL-VORTEX-01 - Visionary | — | — | 0 |
| AS61US | DEC-MARLBORO-AS - Air Force Systems Networking | — | — | 0 |
| AS66US | DNIC-AS-00066 - Headquarters, USAISC | — | — | 0 |
| AS119US | AMS-AS - American Mathematical Society | — | — | 0 |
| AS140US | DNIC-AS-00140 - United States Department of Defense (DoD) | — | — | 0 |
| AS169US | HANSCOM-NET-AS - Air Force Systems Networking | — | — | 0 |
| AS175US | PL-AS - Air Force Systems Networking | — | — | 0 |
| AS216US | LMSC-HOSTNET-AS - Air Force Systems Networking | — | — | 0 |
| AS240US | SAALC-HOSTNET-AS - Air Force Systems Networking | — | — | 0 |
| AS272US | CTNOSC-ASN-272 - Headquarters, USAISC | — | — | 0 |
| AS318US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS412US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS439US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS530US | DNIC-AS-00530 - Headquarters, USAISC | — | — | 0 |
| AS539US | DNIC-AS-00539 - Headquarters, USAISC | — | — | 0 |
| AS568US | DNIC-AS-00568 - United States Department of Defense (DoD) | — | — | 0 |