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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. | 218.1M | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,220 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 | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 256 |
| 19 |
| 20 |
| AS32056US | SHAMROCKFOODS-INTERNET-01 - SHAMROCK FOODS COMPANY | 256 | — | 1 |
| AS394115US | SRALAB-AS - Rehabilitation Institute of Chicago | 256 | — | 1 |
| AS62889US | HMA-ASN1 - Healthcare Management Administrators, Inc. | 256 | — | 1 |
| AS30014US | EDF-RE-MONTREAL - EDF Renewables, Inc. | 256 | — | 1 |
| AS400403US | AS-LSTRAT-RTP - Local Stratus | 256 | — | 1 |
| AS18807US | COMM-WIRELESS-N - Community Wireless | 256 | 65.5K | 2 |
| AS33393US | MMMI - Michigan Millers Mutual Insurance Company | 256 | — | 1 |
| AS33521US | MISSOULA-COUNTY-PUBLIC-SCHOOLS - Missoula County Public Schools | 256 | — | 1 |
| AS397786US | ASPEN-SMART-NETWORKS - Aspen Wireless Technologies Inc | 256 | 65.5K | 2 |
| AS401314US | GOLDENVM-LLC - GoldenVM LLC | 256 | — | 1 |
| AS40488US | NII-RICHFIELD - National Interstate Insurance Company | 256 | — | 1 |
| AS393463US | GAF-TOTOWA-65-223-143-0 - GAF | 256 | — | 1 |
| AS395550US | PHPC-ASN - PARTNERSHIP HEALTHPLAN OF CALIFORNIA | 256 | — | 1 |
| AS398078US | ISPTEK - ISPTek | 256 | 256 | 2 |
| AS33732US | WXYZ-HOSTING-01 - WXYZ HOSTING LLC | 256 | — | 1 |
| AS14216US | ISHIP - IShip.com | 256 | — | 1 |
| AS46591US | DPAM-AS1 - DENSO Products and Services Americas, INC. | 256 | — | 1 |
| AS399498US | PRIVATE-NETWORKS - Private Networks Labs LLC | 256 | — | 1 |
| AS60808US | AP-2440-60808 - Anthropic, | 256 | — | 1 |
| AS64273US | ORCAS - Orca Networking Services | 256 | 1 | 2 |
| AS398429US | GERBERS-POULTRY - Gerber Poultry, Inc. | 256 | — | 1 |
| AS399263US | RISE-CONNECT-01 - Rise Commercial District | 256 | — | 1 |
| AS401698US | NJCL-AS - NORTH JERSEY COMMUNICATIONS LLC | 256 | — | 1 |
| AS394681US | SUMMITHEALTHCARE - Summit Healthcare Regional Medical Center | 256 | — | 1 |
| AS18661US | DCA-BGP - Dunn Carney Allen Higgins & Tongue, LLP | 256 | — | 1 |
| AS11218US | TED-MOUDIS-ASSOCIATES-INC - Ted Moudis Associates, Inc. | 256 | — | 1 |
| AS53778US | BCML-ASN - Berenberg Capital Markets, LLC | 256 | — | 1 |
| AS10935US | RLC-INTERNET - RLC INTERNET | 256 | — | 1 |
| AS19584US | DATACAMO-LOSANGELES - Datacamo, Inc. | 256 | — | 1 |
| AS400614US | APOG-OZARKS - Apogee Telecom Inc. | 256 | — | 1 |
| AS46481US | TOPCO - Topco Associates LLC | 256 | — | 1 |
| AS26980US | CHURCH-DWIGHT - Church & Dwight Co., Inc. | 256 | — | 1 |
| AS36799US | CUBIC-AS - Cubic Corporation | 256 | — | 1 |
| AS401031US | ASN-FAULKNER-UNIVERSITY - Faulkner University | 256 | 256 | 2 |
| AS398289US | JKNIPPER-ASN-01 - J. KNIPPER AND COMPANY, INC. | 256 | — | 1 |
| AS395404US | SEAKR - SEAKR Engineering, LLC | 256 | — | 1 |
| AS394121US | VCH-MADERA - Valley Children's Hospital | 256 | — | 1 |
| AS398027US | ASN-BELL2 - Bell Bank | 256 | — | 1 |
| AS36239US | OFFICERING-LAX - RATETEL, INC | 256 | — | 1 |
| AS29942US | AS29942 - Tanger Properties Limited Partnership | 256 | — | 1 |
| AS55252US | ACTIVE-ASN-2013 - Active International | 256 | — | 1 |
| AS53588US | ATHOC-DC3 - AtHoc Inc | 256 | — | 1 |
| AS30183US | HRCAC-1 - Hard Rock Hotel and Casino Atlantic City | 256 | — | 1 |
| AS26465US | LRC-104 - LRC GROUP LLC | 256 | — | 1 |
| AS401722US | OPTYXBROADBAND-TX - Optyx Broadband Inc. | 256 | — | 1 |
| AS395062US | FIERY-LLC-AS - FIERY, LLC | 256 | — | 1 |