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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 |
| UCBI - United Community Bank |
| 768 |
| — |
| 2 |
| AS11782US | AS-PERFECTO - Perfecto Mobile Inc | 768 | — | 2 |
| AS35910US | LOVES-TRAVEL-STOPS - Love's Travel Stops & Country Stores Inc. | 768 | — | 2 |
| AS399571US | SKYNETKY - SKYNET COMMUNICATIONS OF KENTUCKY LLC | 768 | 69.6K | 5 |
| AS21729US | CROWN-EQUIPMENT - Crown Equipment Corporation | 768 | — | 2 |
| AS394584US | MX-1 - MX Technologies Inc. | 768 | 1 | 4 |
| AS32397US | OCHIN-PDX - OCHIN, INC | 768 | — | 3 |
| AS20235US | MYLANP-AS - Mylan Pharmaceuticals Inc. | 768 | — | 2 |
| AS397290US | HFCU - Honda Federal Credit Union | 768 | — | 3 |
| AS394792US | RAYUS-AS - RAYUS Radiology | 768 | — | 3 |
| AS54822US | R1RCM - Intermedix | 768 | — | 3 |
| AS21664US | AMZN-BYOASN - Amazon.com, Inc. | 768 | — | 3 |
| AS401813US | ARISTOCRAT INTERACTIVE - NEOGAMES US LLP | 768 | — | 3 |
| AS394328US | BMC-PHX - BMC Software, Inc. | 768 | — | 3 |
| AS15185US | HIBBERT-EAST - The Hibbert Group | 768 | — | 3 |
| AS397933US | DC2-WAN - Clark Associates, Inc. | 768 | 1 | 4 |
| AS17365US | CITY-OF-FRESNO - City of Fresno | 768 | — | 3 |
| AS30551US | ASC-163-ASN01 - AK Steel Corporation | 768 | — | 2 |
| AS53524US | DYN-INTL - DYNCORP INTERNATIONAL LLC | 768 | — | 3 |
| AS398270US | HCWIRELESS - Hill Country Wireless & Technology | 768 | — | 3 |
| AS214696US | UNCOLLAPSE-AS Uncollapse LLC | 768 | 3 | 6 |
| AS4866US | POLYVORE - Yahoo Holdings Inc. | 768 | — | 3 |
| AS397493US | NINECLOUD - Ninecloud Services, Inc. | 768 | 11 | 14 |
| AS402429US | RAFF-TECHNOLOGIES - Raff | 768 | — | 3 |
| AS33403US | HEIYO-TELECOM - HEIYO CLOUD CORP. | 768 | — | 3 |
| AS393235US | LERETA-LLC - LERETA, LLC | 768 | — | 3 |
| AS17076US | SR-PRIMARY-BGP - Stone Ridge Asset Management LLC | 768 | — | 3 |
| AS397174US | APPLIED-PREDICTIVE-TECHNOLOGIES - Applied Predictive Technologies, Inc. | 768 | — | 3 |
| AS395066US | DIGITAL-TECHNOLOGY-GROUP - Digital Technology Group, LLC | 768 | — | 3 |
| AS22688US | DOLGENCORP - Dollar General Corporation | 768 | — | 3 |
| AS395227US | CLAYTON - CMH Services Inc. | 768 | — | 3 |
| AS401539US | KLUST-US-DE1 - Corvex, Inc. | 768 | — | 2 |
| AS25936US | MJHS - MJHS Health System | 768 | — | 2 |
| AS40695US | FHLB-OF - FHLBanks - Office of Finance | 768 | — | 3 |
| AS40689US | FTSL-AS - FTS INTERNATIONAL SERVICES, LLC | 768 | — | 3 |
| AS64248US | WCPS-ASN-01 - Worcester County Public Schools | 768 | — | 3 |
| AS393411US | APOG-WASHINGTON-COLLEGE - Apogee Telecom Inc. | 768 | — | 2 |
| AS398547US | KAT-NET-SERVERS - Kat-Net Servers LLC | 768 | — | 3 |
| AS22340US | AS22340 - XONODE | 768 | — | 3 |
| AS20315US | MCHENRY-COUNTY-AS1 - McHenry County | 768 | — | 3 |
| AS19681US | DIGGIO - Networkitects, Inc. | 768 | 65.5K | 3 |
| AS13426US | JUNO-DC-2 - Juno Online Services, Inc. | 768 | — | 3 |
| AS36229US | YAHOO-YSM-SC8 - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS17091US | HOLLCORP - Hollister Incorporated | 768 | — | 2 |
| AS40817US | BMC-AUS - BMC Software, Inc. | 768 | — | 3 |
| AS33603US | DOMINOS-WRC-BLK01 - DOMINOS PIZZA, LLC | 768 | — | 3 |
| AS18767US | PHJW-LLP - Paul, Hastings, Janofsky & Walker LLP | 768 | — | 2 |