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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. | 218M | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1K |
| — |
| 4 |
| AS53944US | JJT-GULFTECH - J & J Telecommunications | 1K | — | 1 |
| AS399080US | EQUILEND - EquiLend Holdings LLC | 1K | — | 3 |
| AS393456US | X - United States Steel Corporation | 1K | — | 4 |
| AS26303US | LSUAGCENTER - LSU AgCenter | 1K | — | 4 |
| AS395478US | ROCKYMOUNTAININTERNET - ROCKY MOUNTAIN INTERNET INC | 1K | — | 1 |
| AS40716US | DOTCOMM - DOT.Comm | 1K | 256 | 5 |
| AS397312US | LAKE-LINX - Lake Linx, Inc. | 1K | 65.5K | 5 |
| AS21519US | SBG-AS2 - Sinclair Broadcast Group, Inc. | 1K | — | 1 |
| AS20310US | ITW-CORPORATE - Illinois Tool Works | 1K | — | 4 |
| AS395853US | NYCMESH - NYC Mesh Inc. | 1K | — | 4 |
| AS401254US | NETSOLV-NETSOLV-01 - NETSOLVE NETWORK TECHNOLOGY LIMITED | 1K | — | 4 |
| AS11372US | 14WEST-AS - 14 W Administrative Services LLC | 1K | — | 4 |
| AS402579US | STSB-NET-FTTH - STS | 1K | — | 1 |
| AS29778US | MTSL-19-29778 - Mid-Atlantic Tech Services, LLC | 1K | — | 1 |
| AS3902US | GLAXOSMITHKLINE - GlaxoSmithKline | 1K | — | 4 |
| AS393837US | VNTX - VERONA NETWORKS LLC | 1K | 65.5K | 2 |
| AS36301US | USJHSD-AS - Pagosa Springs Medical Center | 1K | — | 1 |
| AS13382US | BSG-ORD - Business Solutions Group, LLC | 1K | 256 | 2 |
| AS46754US | FORTEX-DATACENTER-NJ - Fortex Technologies, Inc. | 1K | — | 4 |
| AS396091US | UKRC-P1 - The Northern Trust Company | 1K | — | 1 |
| AS400858US | ARRIVIA - ARRIVIA, INC. | 1K | — | 3 |
| AS32535US | GAYLORD-ROCKIES-01BGPFO - Gaylord Rockies Resort & Convention Center | 1K | — | 1 |
| AS198420US | Netly Netly LLC | 1K | — | 4 |
| AS399518US | HAWAIIPACIFICHEALTH-ASN-01 - Straub Clinic & Hospital | 1K | — | 4 |
| AS14013US | EPSON-ROBOTS - EPSON America (Factory Automation/Robotics) | 1K | — | 1 |
| AS3789US | ESSENTIAHEALTH-3789 - Essentia Health East | 1K | — | 4 |
| AS26199US | NKCHA - North Kansas City Hospital Auxiliary | 1K | — | 4 |
| AS23296US | LINCARE-HOLDINGS-INC - LINCARE INC | 1K | — | 4 |
| AS46388US | MXI-SOLUTIONS - Max Internet Solutions LLC | 1K | — | 1 |
| AS398068US | ACSC1002 - Automobile Club of Southern California | 1K | — | 4 |
| AS23094US | YELLOWBOOK - hibu inc. | 1K | — | 4 |
| AS10351US | ENERT - Enertron L.L.C. | 1K | — | 4 |
| AS53941US | ACC-INET - Accertify, Inc. | 1K | — | 4 |
| AS46522US | COH - City of Henderson, Nevada | 1K | — | 1 |
| AS46814US | MEDICA-NET - Medica Health Plans | 1K | — | 4 |
| AS63415US | GREAT-HEALTHWORKS-4150-BUILDING - Great Healthworks, Inc | 1K | 1 | 5 |
| AS18827US | VGMFORBIN - Forbin | 1K | — | 1 |
| AS32511US | ASANTEHEALTHSYSTEM-1 - Asante Health System | 1K | — | 1 |
| AS13843US | PHOENIX-AMERICAN - Phoenix American Inc. | 1K | — | 1 |
| AS1041US | KMB3 - Kimberly-Clark Corporation | 1K | — | 3 |
| AS23290US | ELPASO-COUNTY-GOVERNMENT-COLORADO - El Paso County | 1K | — | 1 |
| AS33458US | ASN - Axedale | 1K | — | 4 |
| AS4989US | NEXXEN-USEAST-02 - RhythmOne, LLC | 1K | 1 | 2 |
| AS204491US | TEKNOSOS TEKNOSOS LLC | 1K | — | 4 |
| AS40189US | LLO-CALTECH - LIGO Livingston Observatory | 1K | 16 | 2 |
| AS36072US | 12COMMAS - 12 Commas LLC | 1K | 256 | 2 |