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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,291 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,268 |
| 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 | 411 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,732 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,968 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS401187US | ASN-SIGHT - Zulu Partners, LLC | — | — | 0 |
| AS401329US | CLOUDPROPELLER-AS02 - Cloud Propeller | — | — | 0 |
| AS401372US | DATACANOPY-NWK01 - Sidus Group, LLC | — | — | 0 |
| AS401388US | TELOCITY - CABLE DOMAIN LLC | — | — | 0 |
| AS401396US | TCC-NEW-DC - The Computer Company, Inc. | — | — | 0 |
| AS401423US | AS-EC99 - Ecloud LLC | — | — | 0 |
| AS401445US | USAHS-NETWORKING - USA HealthCare Management, LLC | — | — | 0 |
| AS401448US | MSLLC-01 - Mars Services LLC | — | — | 0 |
| AS401452US | TERACAST-AS - Teracast Networks LLC | — | — | 0 |
| AS401536US | KTEL-AS - Ktel telecom LLC | — | — | 0 |
| AS401558US | KSOL - Kage Solutions LLC | — | — | 0 |
| AS401601US | BUTLER-BREMER - Butler-Bremer Communications | — | — | 0 |
| AS401810US | ARDENT-DC - Ardent Data Centers | — | — | 0 |
| AS401812US | BUTTERFLYCLOUD - Butterfly Inc | — | — | 0 |
| AS401842US | REVOHEALTH - Revo Health | — | — | 0 |
| AS401882US | FLEX-AWSDX-01 - FLEXCOMPUTE INC. | — | — | 0 |
| AS401936US | VALORNODE-401936 - Valor Holdings LLC | — | — | 0 |
| AS401957US | CSIDE - Client-side development, Inc. | — | — | 0 |
| AS402078US | ZHBSOLUTIONS-AS-01 - ZHB Solutions LLC | — | — | 0 |
| AS402111US | EPERFORMAX - E-PERFORMAX Centers Inc | — | — | 0 |
| AS402131US | CPS ENERGY - CPS ENERGY | — | — | 0 |
| AS402141US | TOGETHER-TN - Together Computer, Inc. | — | — | 0 |
| AS402152US | CALLABYTE-01 - Callabyte Technology, LLC | — | — | 0 |
| AS402182US | HAZEL-SUDZILOUSKI-NETWORKS - Hazel Sudzilouski, Sole Proprietorship | — | — | 0 |
| AS402201US | NISHNANET - Technically Awesome, LLC | — | — | 0 |
| AS402214US | THINKILLION - Thinkillion LLC | — | — | 0 |
| AS402244US | KUXUEYUN-IPV6 - KUXUEYUN LLC | — | — | 0 |
| AS402329US | P3-EARLYBIRD - P3 | — | — | 0 |
| AS402342US | BORDER - Border | — | — | 0 |
| AS402364US | LCINFRA - Locally | — | — | 0 |
| AS402447US | STREAMWAYS-CORE-ASN - Streamways | — | — | 0 |
| AS402468US | ENDURANCE-UT-ISP - Endurance, | — | — | 0 |
| AS402486US | HARRIS - The | — | — | 0 |
| AS402523US | LAMARCISD-DC1 - Lamar | — | — | 0 |
| AS402571US | WVLC - West | — | — | 0 |
| AS402572US | BRANDONFRANCOIS - BRANDONAVERYFRANCOIS | — | — | 0 |
| AS402583US | AZUSA-NET - azusa | — | — | 0 |
| AS402590US | INTERMOUNTAIN-IX - Ardent | — | — | 0 |
| AS41US | AS41 - National Aeronautics and Space Administration | — | — | 0 |
| AS76US | SDC-CAM-AS - Unisys Corporation | — | — | 0 |
| AS94US | DNIC-AS-00094 - Headquarters, USAISC | — | — | 0 |
| AS105US | MOT-MCD-AS - Gould Computer Systems Division | — | — | 0 |
| AS147US | DNIC-AS-00147 - United States Department of Defense (DoD) | — | — | 0 |
| AS152US | SRI-ACCATT-AS - SRI International | — | — | 0 |
| AS164US | DNIC-AS-00164 - United States Department of Defense (DoD) | — | — | 0 |
| AS178US | UMICH-AS-2 - University of Michigan | — | — | 0 |