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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,171 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,368 |
| 512 |
| 65.5K |
| 3 |
| AS13833US | ASN-NOS - Nos Communications | 512 | — | 2 |
| AS136768US | VMTECHINC-AS-AP - VMTECH INC | 512 | — | 2 |
| AS4898US | OPENTABLE-AS - Opentable, Inc. | 512 | — | 2 |
| AS397337US | KTS-DC-1 - Keytel Systems | 512 | — | 2 |
| AS26796US | MEUS-DC1 - Mitsubishi Electric US, Inc. | 512 | — | 2 |
| AS32837US | WCL-50-AS - Williams & Connolly, LLP | 512 | — | 2 |
| AS400886US | LOGAN-HEALTH - Logan Health Medical Center | 512 | — | 2 |
| AS47018US | CE-BGPAC - Covenant Eyes, Inc. | 512 | — | 2 |
| AS17051US | PURDUEPHARMA - Purdue Pharma LP | 512 | — | 2 |
| AS393327US | EREFIBER - ERE FIber | 512 | 65.5K | 2 |
| AS54675US | TGNA-WGRZ - TEGNA Inc. | 512 | — | 2 |
| AS397531US | ITS-NETWORK - Iowa Data Centers | 512 | — | 1 |
| AS395292US | ACRISURE-ARENA - Acrisure Arena | 512 | — | 2 |
| AS401237US | CVR-ENERGY - CVR Services, LLC | 512 | — | 1 |
| AS397307US | TMNAS-ASN-1 - TMNA Services, LLC | 512 | — | 1 |
| AS16548US | EAST-PENN-MANUFACTURING - East Penn Manufacturing | 512 | — | 2 |
| AS14062US | AKQA - AKQA, Inc. | 512 | — | 2 |
| AS397081US | VALKYRIE-HOSTING - Valkyrie Hosting LLC | 512 | — | 2 |
| AS401586US | SQUIRREL - Squirrel Networks LLC | 512 | — | 2 |
| AS398701US | SLEEPNUMBER-01 - Sleep Number Corporation | 512 | — | 2 |
| AS29782US | VTI-AS29782 - Videojet Technologies Inc. | 512 | — | 2 |
| AS32831US | RPCI-AS - Roswell Park Cancer Institute | 512 | — | 2 |
| AS16563US | NEXUM-ASN - Nexum, Inc. | 512 | — | 1 |
| AS397248US | FRACTALVISION-1 - FractalVision | 512 | 4.1K | 3 |
| AS53434US | SRI-INTERNATIONAL-PRINCETON - SRI International | 512 | — | 1 |
| AS19704US | HCVT-01 - Howard Center, Inc. | 512 | 257 | 4 |
| AS397900US | FIRSTDAY - FirstDay Foundation | 512 | — | 2 |
| AS8188US | BLOOMBERG - Bloomberg Financial Markets Limited Partnership | 512 | — | 2 |
| AS394199US | CEPC-AS1 - Central Electric Power Cooperative | 512 | — | 2 |
| AS394217US | IDAHO-DEPARTMENT-OF-HEALTHAND-WELFARE - State of Idaho | 512 | — | 1 |
| AS395009US | VECTORWORKS-NET - Vectorworks, Inc. | 512 | — | 2 |
| AS20145US | FCS - FLORIDA CANCER SPECIALISTS, P.L. | 512 | — | 2 |
| AS40173US | CHG-AS-01 - Circa Resort & Casino | 512 | — | 1 |
| AS397126US | SWRI-BLDR - Southwest Research Institute | 512 | — | 2 |
| AS29809US | NOSBGP - Centris Information Services | 512 | — | 2 |
| AS33468US | EOJ1 - Locknet | 512 | — | 2 |
| AS18829US | GALAXY-CONTROL-SYSTEMS - Galaxy Control Systems | 512 | — | 2 |
| AS30107US | JSD2 - West Ada School District | 512 | 256 | 3 |
| AS11466US | ANDREWS-FEDERAL1 - Andrews Federal Credit Union | 512 | — | 2 |
| AS53779US | BOMGAR - Bomgar Corporation | 512 | 4 | 6 |
| AS206142US | InternetTV Internet TV, Inc. | 512 | — | 2 |
| AS402327US | ANTERIS-SOLUTIONS-INC - Anteris | 512 | — | 2 |
| AS18689US | GWYNN-GROUP-INC - Gwynn Group Inc. | 512 | — | 2 |
| AS396063US | APJ-PUBLIC - HEWLETT PACKARD ENTERPRISE COMPANY | 512 | — | 1 |
| AS29913US | GEICO03 - GEICO | 512 | — | 2 |
| AS393562US | MOB-ASN - Mobilitie, LLC | 512 | 6 | 8 |