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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 | 25,525 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,309 |
| 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.
32,245 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 | 991 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 768 |
| — |
| 2 |
| AS400535US | CITY-OF-CHESAPEAKE - City of Chesapeake | 768 | 4.1K | 4 |
| AS16429US | TGNA-WCSH - TEGNA Inc. | 768 | — | 3 |
| AS32661US | OLD-NATIONAL-BANCORP - Old National Bancorp | 768 | — | 2 |
| AS394092US | BCT-CONSUTLING - BCT Consulting Inc. | 768 | — | 3 |
| AS4367US | SECSTATE-CA-GOV - California Secretary of State | 768 | — | 3 |
| AS1777US | SAINT-XAVIER-UNIVERSITY-CHICAGO - Saint Xavier University | 768 | — | 3 |
| AS55163US | LINKEDIN - LinkedIn Corporation | 768 | 1 | 4 |
| AS16714US | TENNANT-COMPANY - Tennant | 768 | — | 2 |
| AS46776US | EDUCATORS-CREDIT-UNION - EDUCATORS CREDIT UNION | 768 | — | 3 |
| AS7741US | CIBC-WORLD-MARKETS - CIBC World Markets | 768 | — | 3 |
| AS396566US | VRSN-AC50-340 - VeriSign Global Registry Services | 768 | — | 3 |
| AS59993US | UILLLC-20230328 UNLIMITED IS LIMITED, LLC | 768 | — | 3 |
| AS399082US | MOWINET-ASN - Mosier WiNet LLC | 768 | — | 3 |
| AS17096US | SUMMITRACING - SUMMIT RACING | 768 | — | 3 |
| AS32971US | HCC-ASN - Howard Community College | 768 | — | 2 |
| AS26028US | PANDUIT - Panduit Corp. | 768 | — | 3 |
| AS14056US | SEI - SEI Investments | 768 | — | 3 |
| AS21711US | MAXTEL-USA-01 - Maxtel USA Corp | 768 | — | 3 |
| AS22839US | MIMOWORKS-01 - Mimoworks Internet LLC | 768 | 256 | 3 |
| AS3525US | ALBERTSONS - UNFI | 768 | — | 3 |
| AS54305US | ALLACCESSTC - All Access Telecom, Inc. | 768 | — | 3 |
| AS7324US | IFAX-ASN-1 - iFAX Solutions, Inc. | 768 | 16 | 4 |
| AS32086US | PSHP-AS - PACIFICSOURCE HEALTH PLANS | 768 | — | 3 |
| AS29817US | LCB-ARIN-113 - LAKE CITY BANK | 768 | — | 3 |
| AS25819US | COLLIER-TECHNOLOGIES-LLC - Collier Technologies LLC | 792 | 257 | 12 |
| AS23435US | PHP-14-AS - Premier Health Partners | 800 | — | 3 |
| AS39984US | STARZENTERTAINMENT - Starz Entertainment Group LLC | 800 | — | 4 |
| AS394856US | 394856 - Infinity Insurance Company | 832 | — | 4 |
| AS393447US | AS-VIRTUALSTACKS - Virtual Stacks LLC | 864 | — | 5 |
| AS399745US | WTB - Washington Trust Bank | 864 | — | 6 |
| AS26411US | PRERENDER-NET - Saas.group LLC | 896 | 35 | 9 |
| AS257US | DNIC-AS-00257 - Navy Network Information Center (NNIC) | 960 | 1 | 7 |
| AS401814US | WPP-ET-CAMPUS-SAOPAULO - The Ogilvy Group, LLC | 1K | — | 3 |
| AS27227US | DILLARDS-STORE-SERVICES - Dillard's Store Services Inc. | 1K | — | 1 |
| AS39979US | POLYGON-IO-NY5 - Polygon.io, Inc | 1K | — | 4 |
| AS62508US | GLOBAL-US - GlobalLogic Inc. | 1K | — | 3 |
| AS14770US | REYNOLDSMEDIA-01 - Reynolds Media Inc. | 1K | 2 | 5 |
| AS23368US | DATAONE - DATA ONE SYSTEMS, INC. | 1K | 4.1K | 5 |
| AS53981US | TEXTPLUS-AS - TEXTPLUS, INC. | 1K | 4.1K | 2 |
| AS400769US | FUBOTV-NA-01 - fuboTV Media, Inc | 1K | 4.1K | 5 |
| AS400492US | DP-NET-ASN-01 - DataPerk, LLC | 1K | — | 3 |
| AS22487US | VALENCIA - Valencia College | 1K | — | 4 |
| AS54067US | CSC-ASN - Columbia Sportswear Company | 1K | — | 3 |
| AS14645US | AS-CJIS-20 - CJIS-Consortium-20th-Court Administration | 1K | — | 1 |
| AS399215US | ACTS-01 - ACTS | 1K | — | 3 |
| AS40729US | ECDC2013 - AECOM | 1K | — | 2 |