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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. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 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 | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 256 |
| — |
| 1 |
| AS32507US | LYON-LR-01 - LYON COLLEGE | 256 | — | 1 |
| AS32129US | CITIZEN-WATCH-COMPANY - Citizen Watch Company Of America, Inc. | 256 | — | 1 |
| AS3708US | PACIFIC-BIOSIENCES - Pacific Biosciences of California, Inc. | 256 | — | 1 |
| AS396900US | TRAVELINGMAILBOX - Traveling Mailbox | 256 | — | 1 |
| AS32230US | PRESTIGEFINANCIAL1420 - Prestige Financial Services | 256 | — | 1 |
| AS397329US | CSCI-3662 - Central Security Communications, Inc. | 256 | — | 1 |
| AS393470US | BLACKLIST - Mocan Media LLC | 256 | — | 1 |
| AS396233US | TELEMATE-ATL - TeleMate.Net Software, LLC | 256 | 1 | 2 |
| AS13619US | THOMSON-REUTERS - Thomson Reuters U.S. LLC | 256 | — | 1 |
| AS32754US | SUNPHARMA-01 - Sun Pharmaceutical Industries Inc. | 256 | — | 1 |
| AS394036US | TRUJS - Truity Federal Credit Union | 256 | — | 1 |
| AS397341US | XL-103-397341 - XGRID LTD, LLC | 256 | — | 1 |
| AS19571US | ISB-45-19571 - IHC Specialty Benefits, Inc. | 256 | — | 1 |
| AS14983US | LSAC-AS - Law School Admission Council | 256 | — | 1 |
| AS1975US | PROQUEST-AS - PROQUEST LLC | 256 | — | 1 |
| AS400559US | BOSTON-BROADBAND - Boston Broadband | 256 | — | 1 |
| AS46161US | NEUNER - Neuner Mobile Technologies LLC | 256 | — | 1 |
| AS393479US | AACFCU-HQ - Army Aviation Center Federal Credit Union | 256 | — | 1 |
| AS4878US | NOKIA-TECH - Nokia Technologies | 256 | — | 1 |
| AS26913US | EDPRNA-ERNAL - EDP Renewables North America LLC | 256 | — | 1 |
| AS16671US | COLOBLOX - Coloblox Data Centers Inc | 256 | — | 1 |
| AS26657US | NEUROPACE-CORPORATE-SITE - Neuropace | 256 | — | 1 |
| AS64278US | UAPN - US Auto Parts Network, Inc. | 256 | — | 1 |
| AS393384US | US-KONTIKI-2 - Kollective Technology, Inc. | 256 | — | 1 |
| AS402721US | GW-NETWORKS - Gigawest | 256 | — | 1 |
| AS55075US | BNS - Telecommunication Properties, Inc | 256 | — | 1 |
| AS20348US | OFS-BRANDS - OFS Brands Holdings Inc | 256 | — | 1 |
| AS402834US | ESKIMO-SOFTWARE - Eskimo | 256 | 256 | 2 |
| AS399190US | FSTRF14226 - Frontier Science and Technology Research Foundation, Inc. | 256 | — | 1 |
| AS31971US | UHC-SV - UMPQUA BANK | 256 | — | 1 |
| AS395340US | BINARYDEFENSE - Binary Defense Systems, LLC | 256 | — | 1 |
| AS32608US | US-NEW-ERA-FIBER - US NEW ERA FIBER LLC | 256 | 65.5K | 2 |
| AS394274US | PHMC-AS1 - Public Health Management Corporation | 256 | — | 1 |
| AS33037US | ANTHEMCONNECT - Anthem Broadband | 256 | 4.1K | 2 |
| AS54953US | CALIBER-NODE - Caliber Node, LLC | 256 | — | 1 |
| AS397668US | IFC - Infocrest Systems LLC | 256 | — | 1 |
| AS402039US | MWG-RDGL - Morgan White Group, Inc. | 256 | — | 1 |
| AS396102US | JACKSONVILLE - Formativ Health | 256 | — | 1 |
| AS393566US | INFOGENIUS-INC - InfoGenius.com, Inc | 256 | — | 1 |
| AS30280US | TFCU - Teachers Federal Credit Union | 256 | — | 1 |
| AS22384US | PERFORMIVE-VNI - Performive LLC | 256 | — | 1 |
| AS62721US | AECHELON-MAIN-ROUTER - AECHELON TECHNOLOGY, INC. | 256 | — | 1 |
| AS395635US | GAS-SBC - Guardian Alarm Systems, Inc. | 256 | — | 1 |
| AS33466US | FLVS-AS - Florida Virtual School | 256 | — | 1 |
| AS1615US | EXEL - Exelixis Inc. | 256 | — | 1 |
| AS395736US | CARY-STREET-PARTNERS-LLC - Cary Street Partners | 256 | — | 1 |