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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 | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| 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.
32,202 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| 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 | 4,357 |
| 256 |
| — |
| 1 |
| AS46884US | SERVICELINK-2 - ServiceLink Holdings, LLC | 256 | — | 1 |
| AS393708US | 4EOS-COM - 4EOS | 256 | — | 1 |
| AS397730US | MILDPANIC2 - coresdev, LLC | 256 | 32 | 3 |
| AS204644US | PDQ-RIPE PDQ.COM CORPORATION | 256 | — | 1 |
| AS400142US | FREE-RANGE-INTERNET - Free Range Internet LLC | 256 | — | 1 |
| AS33599US | RELIABLE-REPORTS-OF-TEXAS-INC - Reliable Reports of Texas, Inc. | 256 | — | 1 |
| AS54961US | MITCHELL-INTERNATIONAL - Mitchell International | 256 | — | 1 |
| AS400621US | YUHSD-ISP - Yuma Union High School District #70 | 256 | — | 1 |
| AS36636US | PUBLIC1 - First Service Credit Union | 256 | — | 1 |
| AS36189US | NEILMEDAS - Neil Medical Group | 256 | — | 1 |
| AS400722US | SGP-NIDR - PIMCO | 256 | — | 1 |
| AS18698US | IAC-NYC-AS01 - Icahn Associates Corp. | 256 | — | 1 |
| AS394595US | SENSATA - Sensata Technologies, Inc. | 256 | — | 1 |
| AS15077US | MAG-TEK - MAG-TEK, INC. | 256 | — | 1 |
| AS399582US | VLL-ASN-01 - Voice Logic, LLC. | 256 | — | 1 |
| AS397516US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 256 | 1 | 2 |
| AS395673US | ALABAMA-LIGHTWAVE - ALABAMA LIGHTWAVE, INC. | 256 | 256 | 2 |
| AS11823US | LORDABBETTCO - Lord, Abbett & Co. | 256 | — | 1 |
| AS53505US | DRCFA - Huntington Place | 256 | — | 1 |
| AS393517US | SFDC-TABLEAU - Salesforce, Inc. | 256 | — | 1 |
| AS36719US | MMU-53-AS-NET - Mount Mercy University | 256 | 1 | 2 |
| AS39941US | PACIFIC-WAVE - Pacific Wave | 256 | — | 1 |
| AS402762US | SHIFT4 - Shift4 | 256 | — | 1 |
| AS14842US | BAUD-AS01 - Baudville, Inc. | 256 | — | 1 |
| AS26013US | AMU-FL - Ave Maria University | 256 | — | 1 |
| AS401279US | FREECLOUD-01 - Free Cloud Information Technology Co., LTD | 256 | — | 1 |
| AS402902US | JC-FLOAT-01 - Jason | 256 | 5 | 6 |
| AS394315US | WYNN-EVERETT-MASS - Wynn Resorts Limited | 256 | — | 1 |
| AS19302US | USCC-DC - US Chamber of Commerce | 256 | — | 1 |
| AS395923US | FROST-SCIENCE-MUSEUM - Patrica and Phillip Frost Museum of Science | 256 | — | 1 |
| AS20344US | BILLERICAPS-MA-ASN - Billerica Public Schools | 256 | 1 | 2 |
| AS11436US | BCES-BCEM-01 - Benton County Emergency Management | 256 | — | 1 |
| AS399451US | MSDLT-ASN-01 - METROPOLITAN SCHOOL DISTRICT OF LAWRENCE TOWNSHIP | 256 | — | 1 |
| AS1650US | CAMBRIDGEMA-PUBLIC-SCHOOLS - Cambridge Public Schools | 256 | — | 1 |
| AS401511US | MULLINAX-AUTOMOTIVE - Mullinax Ford | 256 | 2 | 3 |
| AS13374US | DYC-DYU - D'Youville College | 256 | — | 1 |
| AS14631US | EMPIREPAPER-WF - Empire Paper Company | 256 | — | 1 |
| AS22050US | SDLANCPA - School District of Lancaster | 256 | — | 1 |
| AS19692US | EMH - Ephraim McDowell Health, Inc. | 256 | 256 | 2 |
| AS846US | SOLV-OCC-01 - SOLV Energy, LLC | 256 | — | 1 |
| AS54943US | FNIS-INSURANCE-JACKSONVILLE - Stillwater Insurance Services, Inc | 256 | — | 1 |
| AS33557US | DT-ATL-QTS-ASN - Dealership Technologies, LLC | 256 | — | 1 |
| AS19716US | UNITED-SUPERMARKETS - UNITED SUPERMARKETS LLC | 256 | — | 1 |
| AS46741US | AS-LONDON - Morningstar, Inc. | 256 | — | 1 |
| AS4505US | WHDH-BOS - WHDH-TV | 256 | — | 1 |
| AS402065US | QVQNETWORK - QVQNETWORK LLC | 256 | 1 | 2 |