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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,306 |
| 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.
32,232 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,897 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,005 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| SAINTFRANCIS-TULSA - Saint Francis Health System |
| 512 |
| — |
| 1 |
| AS27390US | ALGAS - Fred Alger & Co Inc. | 512 | — | 2 |
| AS16719US | NASD - Financial Industry Regulatory Authority, Inc. | 512 | — | 2 |
| AS30564US | LSUS - Louisiana State University in Shreveport | 512 | — | 2 |
| AS399241US | OCEAN-BANK - Ocean Bank | 512 | — | 2 |
| AS29864US | SPORTSMANS-WAREHOUSE - Sportsman's Warehouse, Inc. | 512 | — | 2 |
| AS399295US | STC-01 - Somerset Trust Company | 512 | — | 2 |
| AS397589US | AMERICAN-DREAM-NJ - AMEREAM NJP, LLC | 512 | 65.5K | 2 |
| AS55284US | USAC-1 - Universal Service Administrative Company | 512 | — | 2 |
| AS53721US | CORETELLIGENT - Coretelligent, LLC | 512 | — | 2 |
| AS40442US | ARCUSTECH - Arcustech, LLC | 512 | — | 2 |
| AS394647US | AS394647 - Crown Castle Fiber LLC | 512 | — | 1 |
| AS396279US | WASHINGTONELECTRIC-AS-1 - WASHINGTON ELECTRIC COOPERATIVE, INC. | 512 | 2 | 4 |
| AS25785US | REDL-1 - Real Estate Digital LLC | 512 | — | 2 |
| AS395942US | PODS-CORP - PODS Enterprises, LLC | 512 | — | 2 |
| AS538US | DNIC-AS-00538 - Headquarters, USAISC | 512 | — | 2 |
| AS398098US | LA-COLL-INET - City National Bank | 512 | — | 2 |
| AS402251US | BOLD-ROOSEV-HED - Apogee Telecom Inc. | 512 | — | 2 |
| AS10595US | MAUSWERKS - Mauswerks, LLC. | 512 | 4.1K | 3 |
| AS19652US | VACATION-EXPRESS - VACATION EXPRESS | 512 | — | 2 |
| AS25922US | CHS-1 - Acuity - CHS, LLC | 512 | — | 2 |
| AS394055US | GRAND-AVENUE-BROADBAND - CBWE Communications, LLC | 512 | — | 2 |
| AS215129US | WPL-133-215129 - Wodarek Productions LLC | 512 | 4.1K | 4 |
| AS401706US | VALLEY-SMART-HOMES - Valley Smart Homes | 512 | 4.1K | 3 |
| AS32886US | NYC-INTERPUBLIC - THE INTERPUBLIC GROUP OF COMPANIES, INC. | 512 | — | 2 |
| AS397937US | TGNA-WTHR - TEGNA Inc. | 512 | — | 2 |
| AS18902US | CMC-II-LLC - CMC II, LLC | 512 | — | 2 |
| AS32481US | OSCEOLA - Osceola County | 512 | — | 2 |
| AS398485US | DFINITY-NET - DFINITY USA Research, LLC | 512 | 4.1K | 5 |
| AS36209US | TGNA-WKYC - TEGNA Inc. | 512 | — | 2 |
| AS54385US | TOLLESON - City of Tolleson | 512 | — | 2 |
| AS14528US | SHOTSPOTTER-01 - SHOTSPOTTER, INC. | 512 | — | 2 |
| AS63260US | ALYESKA - Alyeska Inc. | 512 | 4.1K | 3 |
| AS401739US | REDLUFF-NET01 - RedLuff, LLC | 512 | — | 2 |
| AS393400US | LUXOTTICA-NA2 - Luxottica of America Inc. | 512 | — | 1 |
| AS53775US | SEKISUI KYDEX - Sekisui KYDEX, LLC | 512 | — | 2 |
| AS400926US | KIWI-TELECOM-01 - KIWI TELECOM | 512 | 65.5K | 3 |
| AS29769US | AWT-ASN-29769 - Allwire Technologies LLC | 512 | 4.1K | 3 |
| AS33416US | JMCGH-WTH-1950 - West Tennessee Healthcare | 512 | — | 2 |
| AS399426US | ASTSUL-ASN-01 - Applied Satellite Technology Systems US LLC | 512 | — | 1 |
| AS393584US | NANTCLOUDSERVICESLLC - NantCloud Services LLC | 512 | — | 2 |
| AS394823US | TFFI - Taylor Fresh Foods, Inc. | 512 | — | 2 |
| AS11741US | BENTONREA - BENTON REA POWERNET | 512 | — | 2 |
| AS11479US | BRM-SUN-AS - Oracle Corporation | 512 | — | 2 |
| AS64228US | ONEIT - OneIT, Inc. | 512 | — | 2 |
| AS62918US | ASTM-INTL - American Society for Testing and Materials - ASTM | 512 | — | 2 |
| AS395216US | TELLIGEN - TELLIGEN | 512 | — | 2 |