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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,285 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,310 |
| 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.
32,244 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,356 |
| 1K |
| — |
| 4 |
| AS8173US | STARBOARD - Starboard Networks LLC | 1K | 256 | 2 |
| AS40203US | GROWMARK - GROWMARK, Inc. | 1K | — | 1 |
| AS21913US | MAINFREIGHTUS-AS - Mainfreight, Inc. | 1K | — | 4 |
| AS35865US | COREANDMAIN - Core & Main | 1K | — | 3 |
| AS31637US | MECUK-AS WPP Group USA, Inc. | 1K | — | 3 |
| AS19216US | REVLON-AS - Revlon Consumer Products Corp. | 1K | — | 4 |
| AS401458US | IQVIA-DURHAM-6B - IQVIA Holdings Inc | 1K | — | 1 |
| AS1605US | ALGT-HQNET - Allegiant Travel Company | 1K | — | 4 |
| AS35999US | NYPL - The New York Public Library, Astor, Lenox, and Tilden Foundations | 1K | — | 3 |
| AS395095US | GARNET-HEALTH - Orange Regional Medical Center | 1K | — | 4 |
| AS397965US | COUNTY-OF-TRAVIS-1 - Travis County, Texas | 1K | — | 4 |
| AS19826US | UHS-088 - UNIVERSAL HEALTH SERVICES | 1K | — | 4 |
| AS18769US | PHJW-LLP - Paul, Hastings, Janofsky & Walker LLP | 1K | — | 3 |
| AS36469US | ATL-COLO - Noble Systems Corporation | 1K | — | 4 |
| AS21821US | MMAHS-01 - Montefiore Medical Center | 1K | — | 4 |
| AS53687US | DNI-AS - DataComm Networks Inc. | 1K | — | 4 |
| AS399156US | SECURITYSERVICES - Vercara, LLC | 1K | — | 2 |
| AS21705US | HOUDINI-WCGB - Houdini Inc. | 1K | 1 | 5 |
| AS53484US | WL-NA - Williams Lea LLC | 1K | — | 4 |
| AS29970US | DEVONCORP - Devon Energy Corporation | 1K | — | 4 |
| AS4886US | OPINIONRESEARCHERS - Opinion Researchers, L.L.C. | 1K | — | 3 |
| AS21586US | SWKO - SWKO - SouthWest Kansas Online | 1K | — | 4 |
| AS22101US | CPIL-ASN - Cyber Point International, LLC | 1K | — | 4 |
| AS40262US | PANTONE-AS - Pantone Inc. | 1K | — | 4 |
| AS40069US | AISNET - ASSURED INFORMATION SECURITY, INC. | 1K | 17 | 5 |
| AS206219US | widevoice-fra WideVoice, LLC | 1K | — | 3 |
| AS400978US | GETREALIP-ASN1 - 34 | 1K | 4 | 8 |
| AS13898US | SMART-MOBILE - Smart Mobile LLC | 1K | 1 | 2 |
| AS26948US | OLCC-AS1 - Orange Lake Country Club, Inc | 1K | — | 1 |
| AS664US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | 1K | 1 | 3 |
| AS22038US | PRIME-SGF1 - New Prime, Inc. | 1K | — | 4 |
| AS396989US | LCS-01 - LookingGlass Cyber Solutions Inc. | 1K | — | 4 |
| AS62714US | PHILLIPSDATA - Phillips Data, Inc. | 1K | 5 | 9 |
| AS63324US | CMTA-2 - Capital Metropolitan Transportation Authority | 1K | — | 1 |
| AS13532US | NEED-TO-KNOW-NEWS - Need To Know News, LLC | 1K | — | 1 |
| AS397712US | APOG-PITS - Apogee Telecom Inc. | 1K | — | 3 |
| AS399552US | PATHWAYZ-DFW - Pathwayz Riverside LLC | 1K | — | 3 |
| AS400678US | IPV4 - LIDL US OPERATIONS, LLC | 1K | — | 3 |
| AS14583US | VITA-VSP-1 - Virginia Information Technologies Agency (VITA) | 1K | — | 2 |
| AS14964US | AAPINT - Advance Auto Parts, Inc. | 1K | — | 4 |
| AS13324US | EPC-INC - Executive Personal Computers Inc. | 1K | — | 2 |
| AS394098US | OFFSITEDATASYNC - OFFSITEDATASYNC INC | 1K | — | 4 |
| AS36326US | EDGENODE - Techwebhosting Internet Solutions LLC | 1K | — | 3 |
| AS47071US | CHR-SOLUTIONS - CHR SOLUTIONS INC | 1K | — | 4 |
| AS401461US | ACCELERATE - Accelerate Networks LLC | 1K | 256 | 2 |
| AS26263US | CLV-MULTIHOME - City of Las Vegas | 1K | — | 1 |