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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| — |
| — |
| 0 |
| AS395250US | AS-BMSO365 - Bristol-Myers Squibb Company | — | 24 | 4 |
| AS4207US | NET-INTRNET - Allied Access Inc. | — | — | 0 |
| AS399980US | RFPT - RFPT COMPANY LLC | — | 258 | 3 |
| AS4183US | UUNET-MCIWCOM - Verizon Business | — | — | 0 |
| AS62925US | CRENET-ASN-01 - CRE NETWORK, LLC | — | 32 | 2 |
| AS4102US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS21939US | PCCUA-AS - Phillips Community College of the University of Arkansas | — | 260 | 2 |
| AS3153US | FEMANET - Federal Emergency Management Agency | — | — | 0 |
| AS219525US | DaleNetworks Jevin Dale | — | 1 | 1 |
| AS214085US | JUNIPERCIRCUIT-AS Eugene Lapidous | — | 1 | 1 |
| AS402008US | L7CORE-L7AS01 - L7CORE, LLC | — | 1 | 1 |
| AS394487US | LTDBROADBAND-WATERTOWN - LTD Broadband LLC | — | — | 0 |
| AS206540US | CREEKY-NOISES-MAKE-MY-SKIN-CREEP-I-NEED-TO-GET-SOME-SLEEP-I-CAN-T-GET-NO-SLEEP BEANSUMMERHOST NEXTGEN SHED HOSTING SOLUTIONS LLC | — | 8 | 8 |
| AS394068US | NAVEX-GLOBAL-INC - NAVEX Global, inc | — | — | 0 |
| AS402897US | CKSVC-01 - CK | — | 17 | 2 |
| AS394207US | RGHQ-ASN-ONE - rateGenius inc. | — | — | 0 |
| AS33760US | UWUNET - Ashton Holmes, Sole Proprietorship | — | 5 | 5 |
| AS393588US | AS393588 - 617A Corporation | — | — | 0 |
| AS22400US | WEB2OBJECTS - Web2Objects LLC | — | 2 | 1 |
| AS394266US | LITFIBER - QxC Communications, Inc. | — | — | 0 |
| AS200690US | YOURSUNNY-AS Junxiao Shi | — | 39 | 9 |
| AS575US | DNIC-AS-00575 - Headquarters, USAISC | — | 256 | 1 |
| AS46464US | NB-PRIMARY-01 - Nybbles and Bytes Studios, LLC | — | 1 | 1 |
| AS36461US | SPGLOBAL-CAPIQ-ACQUIRED - S&P Global Inc. | — | — | 0 |
| AS10941US | TECHCOM-1 - Genuine Telecom | — | 256 | 1 |
| AS32137US | FTD-1 - FTD, LLC | — | — | 0 |
| AS142130US | NICONET-AS-US - NICHONET Inter-Continental Hosting Operation Network | — | 18 | 3 |
| AS401420US | WANN - Wann Networks | — | 256 | 1 |
| AS401849US | HYPERION-NETWORK - Hyperion Telecom LLC | — | 3.1M | 6 |
| AS5900US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS400148US | BULK-SOLUTIONS-01 - Bulk Solutions, LLC | — | 256 | 1 |
| AS4042US | VERO-NETWORKS-AS4042 - Vero Broadband | — | — | 0 |
| AS11007US | NEONGOAT - Neon Goat Productions | — | 1 | 1 |
| AS5869US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS21687US | AS21687 - Crown Castle Fiber LLC | — | 1.5K | 3 |
| AS3907US | CONNECT-1-NET - Connected INC | — | — | 0 |
| AS402460US | UAMS-SCIENCE-DMZ - University | — | 1 | 1 |
| AS3835US | DNIC-AS-03835 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS398394US | DF-HADDEN - DF Supply, Inc. | — | 1 | 1 |
| AS3619US | MCIASN-BLK - Verizon Business | — | — | 0 |
| AS202902US | ANTARES-NETWORK Nathen Goldsborough | — | 1 | 1 |
| AS3956US | TX-METRO - Texas Metronet | — | — | 0 |
| AS401821US | CYGNUS-NETWORK-A - Cygnus Networks LLC | — | 3.1M | 6 |
| AS30581US | SUNOAKI-NET - Sunoaki Network LLC | — | 1 | 1 |
| AS33655US | CMCS - Comcast Cable Communications, LLC | — | 7 | 7 |
| AS4942US | B-NET - B-Net Technologies | — | — | 0 |