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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 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 | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 512 |
| 1 |
| 3 |
| AS33012US | VERTEX-RESEARCH-GROUP - Vertex Research Group, Inc. | 512 | — | 2 |
| AS398063US | ADVISOR360-ASN - Advisor360 LLC | 512 | — | 2 |
| AS18459US | UAIC-INTERNET - UNITED AUTOMOBILE INSURANCE | 512 | — | 2 |
| AS396321US | FANATICS - Fanatics, INC | 512 | — | 2 |
| AS12168US | DANAONMISSIONBAY-GUEST-INTERNET - The Dana On Mission Bay | 512 | — | 1 |
| AS18798US | INTERNET-SERVICES - Encore Group (USA) LLC | 512 | — | 2 |
| AS32744US | MCCC - Montgomery County Community College | 512 | — | 2 |
| AS54365US | DIGITAL-INNOVATIONS-BY-RYAN - Digital Innovations by Ryan | 512 | 256 | 3 |
| AS47094US | ITRON-6-47094 - Itron | 512 | — | 2 |
| AS20254US | TCS-ASN-216-230-22-WHTSKY - Tuscaloosa City Schools | 512 | — | 1 |
| AS62645US | SNAPNAMES - SNAPNAMES.COM, INC. | 512 | 1 | 2 |
| AS396369US | CITYOFLUBBOCKTX - City of Lubbock | 512 | — | 2 |
| AS393579US | LEE-MEMORIAL-HEALTH-SYSTEM - Lee Memorial Health System | 512 | — | 2 |
| AS394493US | CDK-GLOBAL-HOSTING-FB - CDK Global, LLC | 512 | — | 2 |
| AS27468US | GOODWILL-INDUSTRIES-OF-ORANGE-COUNTY - Goodwill Industries of Orange County | 512 | — | 2 |
| AS62877US | AIR-METHODS-ASN-FOR-DENVER-OMAHA-SAN-BERNARDINO - AIR METHODS | 512 | — | 1 |
| AS27507US | XTREME-INTERNET - Xtreme Internet | 512 | — | 2 |
| AS401156US | MCB - Metropolitan Commercial Bank | 512 | — | 2 |
| AS399965US | UTAH-JAZZ - Jazz Basketball Investors LLC | 512 | — | 2 |
| AS40604US | N2N-TECHNOLOGIES - N2N Technologies, Inc. | 512 | — | 2 |
| AS30707US | YABOIII - YaBoiii | 512 | — | 2 |
| AS401859US | D3VUR - D3VUR LLC | 512 | 1 | 3 |
| AS961US | ACHIEVE-US - Achieve Wireless Inc | 512 | 257 | 4 |
| AS395598US | MORAE-GLOBAL-US - Morae Global | 512 | — | 2 |
| AS27170US | QBE-AMERICAS-ORD - QBE Americas, Inc. | 512 | — | 2 |
| AS397429US | SEATTLE-HQ - EXPEDIA, INC | 512 | — | 2 |
| AS54728US | DATAPLANE - DataPlane.org | 512 | 1 | 3 |
| AS393764US | APOG-HUNTINGDON-COLLEGE - Apogee Telecom Inc. | 512 | — | 2 |
| AS21594US | IBSA - Interstate Battery System of America Inc. | 512 | — | 1 |
| AS14460US | HORIZON - Horizon Media, Inc. | 512 | — | 2 |
| AS19251US | NEPGROUPINC - NEP Group, Inc. | 512 | — | 2 |
| AS60653US | FEEDLY-DEVHD FEEDLY, INC. | 512 | — | 2 |
| AS7818US | ASN-QUEENCREEK - Town of Queen Creek | 512 | — | 2 |
| AS46600US | E2-SERVICES-01 - E2 Services Inc. | 512 | — | 2 |
| AS26075US | MCUNY-01 - Municipal Credit Union of NY | 512 | — | 2 |
| AS207439US | KORVESNET Korves.Net USA LLC | 512 | 524.3K | 3 |
| AS16827US | LAWTONIS - Lawton Information Services, LLC | 512 | 2 | 4 |
| AS396104US | KARMA-CORP-SVCS - Karma Automotive, LLC | 512 | — | 2 |
| AS32887US | GEHA - GEHA | 512 | — | 2 |
| AS397807US | RNT-DS-NET - Reich & Tang Deposit Solutions, LLC | 512 | — | 2 |
| AS40467US | CREDORAX-ARIN1 - Credorax (USA) Inc. | 512 | — | 2 |
| AS401552US | EUC - Example User Content, LLC | 512 | — | 2 |
| AS398795US | TALLWIRELESS - RFPT COMPANY LLC | 512 | 50 | 7 |
| AS40324US | TGNA-KVUE - TEGNA Inc. | 512 | — | 2 |
| AS397515US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 512 | 2 | 4 |
| AS47657US | DEVEXPERTS-AS Devexperts Inc | 512 | — | 2 |