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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 | 3,136 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.5M | 20,721 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 73.1M | 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC |
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.
| 68.3M |
| 366 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 66.4M | 1,106 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 47.9M | 3,574 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,926 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.2M | 4,508 |
| — |
| — |
| 0 |
| AS522US | AFSC-SSD-AS - Air Force Systems Networking | — | — | 0 |
| AS2938US | SPRINT-MRN - U.S. Sprint | — | — | 0 |
| AS401024US | COMMUNICATIONSAUTHORITY - Communications Authority, INC | — | 256 | 1 |
| AS1599US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS396694US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS398515US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398534US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398510US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398394US | DF-HADDEN - DF Supply, Inc. | — | 1 | 1 |
| AS395496US | MICROSOFT-CORP-AS-BLOCK-MSIT3 - Microsoft Corporation | — | — | 0 |
| AS396050US | HYPERGROUP-IX - Hyper Group Network LLC | — | — | 0 |
| AS395601US | ASHP-HQ - AMERICAN SOCIETY OF HEALTH SYSTEM PHARMACISTS | — | — | 0 |
| AS396561US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS395106US | BPR-OF-TN-AS - Board of Professional Responsibility of the Supreme Court of Tennessee | — | — | 0 |
| AS395264US | TREKNETWORKS - Network Resource Technologies Corp | — | — | 0 |
| AS398796US | ABTEX-01 - ABTEX LLC | — | — | 0 |
| AS401574US | WIFIRESAS01 - Wifires Communications, LLC | — | 81.9K | 2 |
| AS402216US | EWL-TTFF-2NM - Town to Farm Fiber | — | — | 0 |
| AS396752US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396678US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396646US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS402368US | HOSTGSM-NET - hostgsm.com | — | — | 0 |
| AS402129US | AENTE-HEALTHTECH-AS - AENTE INC | — | — | 0 |
| AS402325US | SOUTHERN-TIER-NETWORK-NY - Southern | — | — | 0 |
| AS200360US | FOLF-SYSTEMS-AS Cooper Greer | — | 23 | 5 |
| AS398315US | AS-SSS - Selective Service System | — | — | 0 |
| AS397877US | ECBROADBAND - Eastern Carolina Broadband LLC | — | 1 | 1 |
| AS5276US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS4551US | CL-260-4551 - CyrusOne LLC | — | — | 0 |
| AS5834US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5805US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5674US | PBI-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5689US | HOOSIERNET - HoosierNet, Inc. | — | — | 0 |
| AS5634US | MILESTONE - Milestone Research and Development Labs Inc. | — | — | 0 |
| AS214092US | Zachary-Ezetta Zachary Ezetta | — | 1 | 1 |
| AS397758US | DATAROBOT-01 - DataRobot, Inc. | — | — | 0 |
| AS47778US | SUNOAKI-NET-BACKBONE Sunoaki Network LLC | — | 12 | 9 |
| AS397907US | 865 - AEG | — | — | 0 |
| AS397852US | PRIVATELINE-SWITCH-01 - Private Line, LLC | — | — | 0 |
| AS397525US | ALPHAONE-AS - Alpha1Servers, LLC | — | — | 0 |
| AS399196US | REDRAY-STUDIOS - REDRAY STUDIOS LLC | — | 1 | 1 |
| AS397265US | DIGITALWORX - Digital Worx, Inc | — | — | 0 |
| AS30581US | SUNOAKI-NET - Sunoaki Network LLC | — | 1 | 1 |
| AS401919US | AS401919 - Pinehurst Networks | — | — | 0 |
| AS399316US | SUNRISEFL-ASN-101 - City of Sunrise | — | — | 0 |
| AS398811US | EQUINIX-EC-BO - Equinix, Inc. | — | — | 0 |