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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 |
| — |
| 3 |
| AS26815US | LOWENS01 - Lowenstein Sandler | 768 | — | 3 |
| AS26461US | CARDHOLDER-MANAGEMENT-SERVICES - Cardworks Servicing, LLC | 768 | — | 3 |
| AS21784US | AUCRWWL - The Robert W. Woodruff Library of the Atlanta University Center, Inc. | 768 | — | 2 |
| AS62787US | SNARKNET - Snark Holding Corp. | 768 | 3 | 6 |
| AS197640US | NETPROTECT Overplay, Inc | 768 | — | 3 |
| AS401048US | SUPREME-SERVERS - Supreme Servers | 768 | 16 | 3 |
| AS393233US | VENTIVTECH - Ventiv Technology Inc. | 768 | — | 3 |
| AS17145US | TEAJAX - THE ENERGY AUTHORITY | 768 | — | 2 |
| AS54686US | AS54686-CFBROADBAND - Central Florida Broadband | 768 | 256 | 3 |
| AS25821US | PRISEDA-NET - Priseda LLC | 768 | — | 3 |
| AS64296US | ONRADINC - Onrad, Inc. | 768 | — | 2 |
| AS399009US | FACHQINTERNET - FANUC America Corporation | 768 | — | 2 |
| AS55156US | RLR-EAS - R & L Carriers Inc | 768 | — | 3 |
| AS13620US | EMBLEMHEALTH - EMBLEMHEALTH SERVICES COMPANY, LLC | 768 | — | 3 |
| AS32030US | VOIPSTER - VoIPster Communications, INC. | 768 | 3 | 6 |
| AS55080US | EMERGE212 - Emerge212 | 768 | — | 3 |
| AS398382US | ABV-WC - AbbVie, Inc. | 768 | — | 3 |
| AS44841US | Egressif Egressif LLC | 768 | 526.6K | 7 |
| AS21663US | GETWELL-NETWORK - GetWellNetwork, Inc. | 768 | — | 3 |
| AS393898US | ALWAYSON - AlwaysON Internet | 768 | — | 3 |
| AS63116US | BAKER-DONELSON - Baker, Donelson, Bearman, Caldwell & Berkowitz, PC | 768 | — | 3 |
| AS399103US | SPRY-WIRELESS-02 - Spry Wireless Communications Inc | 768 | — | 2 |
| AS393797US | TRAC-750CRE - Trac Intermodal | 768 | — | 2 |
| AS807US | FORKSYSTEMS - FORK SYSTEMS | 768 | 1 | 4 |
| AS45008US | Amex-EMEA American Express Travel Related Services Company, Inc | 768 | — | 3 |
| AS36752US | YAHOO-SP1 - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS32268US | ARTISAN-PARTNERS-ASN - Artisan Partners Limited Partnership | 768 | — | 3 |
| AS40268US | ICON-INTERNET - ICON Internet, LLC | 768 | 8.2K | 5 |
| AS400541US | RIDGELINE - Ridgeline International, LLC | 768 | 768 | 6 |
| AS396411US | MICROPACT-ASH-DC - MicroPact Global, Inc | 768 | — | 3 |
| AS394622US | EMMIX - Emmix | 768 | — | 3 |
| AS16968US | AURELIA-TEL - Aurelia Telecom Systems LLC | 768 | — | 2 |
| AS200074US | ASSWH SN SOLUTIONS LLC | 768 | 1 | 4 |
| AS23354US | ECHOSTAR-CO - Echostar Purchasing Corporation | 768 | — | 3 |
| AS19424US | CV-NET-1 - Cars Commerce | 768 | — | 2 |
| AS14354US | WACHTER-AS1 - Wachter Technology Solutions | 768 | — | 2 |
| AS398361US | HORIZON-WIRELESS - Horizon Satellite, LLC | 768 | — | 2 |
| AS399939US | BHE-GTS - BHE GT&S, LLC | 768 | — | 3 |
| AS30625US | AKERMAN-SENTERFITT - AKERMAN SENTERFITT | 768 | — | 3 |
| AS395423US | AOFL - Age of Learning, Inc. | 768 | 16 | 3 |
| AS63071US | STAFFORDCOUNTYPUBLICSCHOOLS - Stafford County Public Schools | 768 | — | 3 |
| AS14032US | FOOT-LOCKER-CORPORATE-SERVICES - Foot Locker Corporate Services, Inc | 768 | 1 | 4 |
| AS53621US | RADY-CHILDRENS-HOSPITAL-SAN-DIEGO - Rady Children's Hospital - San Diego | 768 | — | 3 |
| AS6973US | AS6973 - Morgan Stanley | 768 | — | 3 |
| AS394830US | MASSIVE-MESH - Massivemesh LLC | 768 | 4.1K | 4 |
| AS13395US | SMART-CITY-SOCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 768 | — | 2 |