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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| — |
| — |
| 0 |
| AS402095US | GRACEWOOD INTERIORS LLC - GraceWood | — | — | 0 |
| AS402186US | SERO - SeroWeb LLC | — | — | 0 |
| AS402189US | 46454 - WCS | — | — | 0 |
| AS402264US | VENTED - Vented LLC | — | — | 0 |
| AS402345US | RH - Rapidhosting | — | — | 0 |
| AS402408US | STARSTREAM - Starstream | — | — | 0 |
| AS402497US | EXI - EXI | — | — | 0 |
| AS402502US | JDGI - J | — | — | 0 |
| AS402528US | US-RDC-DC1-P1 - RedCell | — | — | 0 |
| AS402538US | TABMAC - Tabmac | — | — | 0 |
| AS402588US | LINDRIS - Lindris | — | — | 0 |
| AS402594US | SENDLAYER - SendLayer, | — | — | 0 |
| AS402621US | NEXTTHINKLAB - Nextthinklabs | — | — | 0 |
| AS402655US | APLSL - Atlas | — | — | 0 |
| AS402658US | COMPUSERVE-LIMITED - Compuserve | — | — | 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 |
| AS402874US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402881US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402882US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402892US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402942US | BECKGROUP-IPRANGE-01 - HCBECK, | — | — | 0 |
| AS402997US | AXAR-CAPITAL-ASN-001 - Axar | — | — | 0 |
| AS403056US | SHUTTLEAI - ShuttleAI, | — | — | 0 |
| AS403071US | OA-ASN-01 - OrthoArkansas | — | — | 0 |
| AS403122US | CHEVRONFCU-DC1 - Chevron | — | — | 0 |
| AS403181US | 314E - 314e | — | — | 0 |
| AS403182US | ZUMA-INTERNET - Zuma | — | — | 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 |