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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 | 24,632 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,210 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 256 |
| — |
| 1 |
| AS30659US | OCFL-COMPTROLLER - Orange County Comptroller | 256 | — | 1 |
| AS399798US | NOVANTAS-01 - Novantas, Inc. | 256 | 1 | 2 |
| AS399896US | VWNA-AS3 - Volkswagen Group of America, Inc. | 256 | — | 1 |
| AS398336US | MODERN-WOODMEN-OF-AMERICA - Modern Woodmen of America | 256 | — | 1 |
| AS40362US | CHAPIN-AS - Chapin School | 256 | — | 1 |
| AS14662US | CSTONE-NET - Cornerstone Systems Inc. | 256 | — | 1 |
| AS1053US | BEARCOM-ALWAYS-ON - BearCom Operating, LLC | 256 | — | 1 |
| AS401873US | STM-014 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS62742US | BDNET-01 - Blackdragon Networks, LLC | 256 | — | 1 |
| AS400435US | EAGLE-WIRELESS - Eagle Wireless LLC | 256 | — | 1 |
| AS63171US | PASADENA-ISD-AS1 - Pasadena Independent School District | 256 | — | 1 |
| AS11825US | AS-BLUEFIBER - BLUEFIBER.COM, INC. | 256 | — | 1 |
| AS401968US | APTAR-GLO-01 - AptarGroup Inc. | 256 | — | 1 |
| AS23025US | ASNSTL - City of St. Louis | 256 | — | 1 |
| AS27396US | ASSOCI-BR-AS1 - Associated Grocers | 256 | — | 1 |
| AS395070US | ALLSOUTH-INTERNET - AllSouth Federal Credit Union | 256 | — | 1 |
| AS398205US | WSFARMS-LRO-01 - Sanderson Farms, Inc. | 256 | — | 1 |
| AS62635US | WEBISTICS-HOLDINGS-LTD - VPNWholesaler.com | 256 | — | 1 |
| AS397434US | CSBS-HQ - Conference of State Bank Supervisors, Inc. | 256 | — | 1 |
| AS62855US | CMA-MISCNY - Currier, McCabe and Associates, Inc. | 256 | — | 1 |
| AS22656US | SINE-NOMINE-ASSC - Sine Nomine Associates Inc. | 256 | — | 1 |
| AS395412US | VS-MEDIA-IPV4 - VS Media Inc. | 256 | — | 1 |
| AS22796US | CCC-HART - Campus Crusade for Christ, Inc. | 256 | 1 | 2 |
| AS1508US | DNIC-AS-01508 - Headquarters, USAISC | 256 | 1 | 2 |
| AS30692US | JACKED - JackedWireless | 256 | — | 1 |
| AS394948US | EDF-RE - EDF Renewables, Inc. | 256 | — | 1 |
| AS32761US | WASSE-NYC - Wasserstein & Co. | 256 | — | 1 |
| AS400265US | DWS-AUL-INT - Disney Worldwide Services, Inc. | 256 | — | 1 |
| AS20349US | CFRDC-MFICORE - Crystal Farms Refrigerated Distribution Company | 256 | — | 1 |
| AS400959US | CARYNC - Town of Cary | 256 | — | 1 |
| AS397276US | FL-NINTHCIRCUIT - Ninth Judicial Circuit Court of Florida | 256 | — | 1 |
| AS26964US | INGRAMBARGE-1 - INGRAM BARGE COMPANY | 256 | — | 1 |
| AS19253US | SBAINC-AS - SBA, Inc | 256 | — | 1 |
| AS393590US | HBHGA - The Original Honey Baked Ham Company of Georgia, Inc. | 256 | — | 1 |
| AS13599US | 13599 - Eisai Inc. | 256 | — | 1 |
| AS63144US | MCIT - Macomb County, Michigan | 256 | — | 1 |
| AS11262US | WH-TRADING - W.H. Trading, L.L.C. | 256 | — | 1 |
| AS14930US | ALLANT-GROUP - The Allant Group, Inc. | 256 | — | 1 |
| AS40085US | KODIAKCOMPUTERSERVICES - Kodiak Computer Services, Inc. | 256 | — | 1 |
| AS33648US | INTERNET-LLC - Patriot Broadband | 256 | 1.5K | 7 |
| AS36033US | MOON-AS - Moon Capital Master Fund Ltd. | 256 | — | 1 |
| AS393995US | PFFCUGW - Police and Fire Federal Credit Union | 256 | — | 1 |
| AS54561US | SECUREDRAGON - Secure Dragon LLC. | 256 | 1 | 2 |
| AS400000US | PCB - PCB Piezotronics, Inc. | 256 | — | 1 |
| AS16865US | SKYLINE - Skyline Security | 256 | 16 | 2 |
| AS62629US | RESULTS - Results Physiotherapy | 256 | — | 1 |