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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. | 218.1M | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 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.
32,220 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 | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| AMERICAN-LOGISTICS-LLC - American Logistics,LLC |
| 256 |
| — |
| 1 |
| AS394934US | UBT-ASN - Union Bank and Trust Company | 256 | — | 1 |
| AS12123US | SPOKANE-TRANSIT-01 - Spokane Transit Authority | 256 | — | 1 |
| AS54898US | CITY-OF-SAN-BUENAVENTURA - City of San Buenaventura | 256 | — | 1 |
| AS55115US | APXINC-DAL - APX, Inc. | 256 | — | 1 |
| AS54451US | FCWAPUBLIC - Fairfax Water | 256 | — | 1 |
| AS32285US | HFCC - Henry Ford College | 256 | — | 1 |
| AS400498US | BPLLC-AS-01 - Brad Peabody LLC | 256 | 4 | 2 |
| AS30410US | FCSO1-ASN - First Coast Service Options, Inc. | 256 | — | 1 |
| AS396080US | EDGEWOODTAHOE - Edgewood Companies | 256 | — | 1 |
| AS15336US | CONCOR-1 - Concordia University, St. Paul | 256 | — | 1 |
| AS62493US | COBNET-ASN-2 - City of Bryan, Texas | 256 | — | 1 |
| AS47091US | AIR-LIQUIDE-US000 - Air Liquide America | 256 | — | 1 |
| AS395112US | BEAUMONT-ISD-01 - Beaumont ISD | 256 | — | 1 |
| AS401061US | RGI-192-241-34-0-1 - Rogers Group, Inc. | 256 | — | 1 |
| AS13865US | SFL-255-13865 - Southeastern Freight Lines, Inc. | 256 | — | 1 |
| AS33009US | TKFAST - TkFast Inc | 256 | — | 1 |
| AS394365US | HOLCOMBE-CIRCUIT - S & K TV Systems, Inc. | 256 | — | 1 |
| AS26060US | ECS - ECS Tuning, LLC | 256 | — | 1 |
| AS54901US | 0815 - Wave2Net LLC | 256 | — | 1 |
| AS46442US | CCPL-1 - Corbin Capital Partners, L.P. | 256 | — | 1 |
| AS20302US | CITY-OF-PALM-COAST - City of Palm Coast | 256 | — | 1 |
| AS21752US | ACPHLA - Albany County Pine Hills Land Authority | 256 | 256 | 2 |
| AS14478US | RECURSE-CENTER - Recurse Center | 256 | 2 | 3 |
| AS395699US | ULINECOM - Uline | 256 | — | 1 |
| AS397158US | RCS-CO-LO-BGP - Resurgent Capital Services LP | 256 | — | 1 |
| AS209827US | INFOSECVPN-AS Del Andujar | 256 | — | 1 |
| AS395934US | LEGALZOOM - Legalzoom.com, inc. | 256 | — | 1 |
| AS19724US | UNITEDONE - United One | 256 | — | 1 |
| AS23398US | DZSI - Dasan Zhone Solutions, Inc. | 256 | — | 1 |
| AS16994US | VISTA-01 - Vista Bank | 256 | — | 1 |
| AS55118US | VALUEDRUGCOMPANYVD-32AS - Value Drug Company Inc. | 256 | — | 1 |
| AS396062US | VDT-6-NRO - VDOT | 256 | — | 1 |
| AS218741US | ORG-LWL9-AS LATITUDE WIRELESS LLC | 256 | — | 1 |
| AS55008US | PROCAPS-LABS-01 - Procaps Laboratories,Inc | 256 | — | 1 |
| AS26736US | AGRI-369 - Viterra USA Investment LLC | 256 | — | 1 |
| AS32872US | DIFF-COMP-01 - Difficult Computing, LLC | 256 | 256 | 2 |
| AS402145US | GALACTIC - Galactic Services, LLC | 256 | 256 | 2 |
| AS397024US | AMGNATIONAL - AMG National Trust Bank | 256 | — | 1 |
| AS399879US | CENTERCLICK-ASN - CenterClick LLC | 256 | 17 | 3 |
| AS40110US | CCI-ASN - CCI | 256 | — | 1 |
| AS47041US | ASN-STBER-3 - ST BERNARDS HEALTHCARE | 256 | — | 1 |
| AS395041US | SFHS-CAPE-GIRARDEAU - Saint Francis Medical Center | 256 | — | 1 |
| AS46508US | WWP - Wwpass Corporation | 256 | — | 1 |
| AS31958US | NGNSYS-AS - NGNSYS, LLC | 256 | — | 1 |
| AS21561US | LESSCHWABMO - Les Schwab Tire Centers | 256 | — | 1 |
| AS54642US | LC-CHI-BGP - Litchfield Cavo, LLP | 256 | — | 1 |