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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 |
| 1K |
| — |
| 1 |
| AS18440US | NCCI - National Council on Compensation Insurance, Inc. | 1K | — | 4 |
| AS32005US | THE-CHURCH-PENSION-GROUP - CHURCH PENSION GROUP SERVICES CORPORATION | 1K | — | 4 |
| AS198420US | Netly Netly LLC | 1K | — | 4 |
| AS54135US | TGNA-WTLV - TEGNA Inc. | 1K | — | 4 |
| AS26199US | NKCHA - North Kansas City Hospital Auxiliary | 1K | — | 4 |
| AS46814US | MEDICA-NET - Medica Health Plans | 1K | — | 4 |
| AS204491US | TEKNOSOS TEKNOSOS LLC | 1K | — | 4 |
| AS23290US | ELPASO-COUNTY-GOVERNMENT-COLORADO - El Paso County | 1K | — | 1 |
| AS206533US | CentrixNodes CentrixNodes LLC | 1K | 65.5K | 6 |
| AS393307US | CHSNJ-ASN1 - Cooper University Hospital | 1K | — | 2 |
| AS36253US | DCIUNET - Delaware County Intermediate Unit | 1K | — | 1 |
| AS399399US | LUXOTTICA-NA - Luxottica of America Inc. | 1K | — | 4 |
| AS398860US | OPTIDATA-US1 - OPTIDATA CLOUD | 1K | 65.5K | 4 |
| AS62909US | FCCU-ASN1 - FIRST COMMUNITY CREDIT UNION | 1K | 256 | 4 |
| AS40460US | WECONNECT - WeConnect | 1K | — | 1 |
| AS26836US | AS-MARCHESE-NET - Marchese Computer Products, Inc. | 1K | — | 4 |
| AS202639US | ON24 ON24, Inc | 1K | — | 1 |
| AS36858US | NMSTN - Office of Broadband Access and Expansion | 1K | 65.5K | 5 |
| AS1443US | SUPERCOOPER01 - CooperVision, Inc. | 1K | — | 1 |
| AS400944US | POPUP-WIFI-AS - PopUp WiFi LLC | 1K | — | 4 |
| AS394790US | AVERA - AVERA MCKENNAN | 1K | — | 4 |
| AS22495US | SIMON-208-0 - Simon Property Group LP | 1K | — | 2 |
| AS54224US | ALPINEBK-ALPINE-BAN - Alpine Banks of Colorado | 1K | — | 3 |
| AS55025US | BLUEZONE-ISP - BLUEZONE INTERNET INC | 1K | — | 4 |
| AS40886US | PRAC - Plymouth Rock Assurance Corporation | 1K | — | 4 |
| AS395481US | SUNET - i SW, LLC | 1K | — | 1 |
| AS53944US | JJT-GULFTECH - J & J Telecommunications | 1K | — | 1 |
| AS40222US | CREDIT-ONE-AS - Credit One Bank | 1K | — | 4 |
| AS63174US | LAS-COLO2 - Blue Shield of California | 1K | — | 3 |
| AS40594US | BULLE - Bulle Media Group, Inc. | 1K | — | 4 |
| AS11372US | 14WEST-AS - 14 W Administrative Services LLC | 1K | — | 4 |
| AS40481US | G3-ASN-1 - G3 Group | 1K | — | 1 |
| AS28688US | MINDSHARE-AS WPP Group USA, Inc. | 1K | — | 3 |
| AS399110US | DATACANOPY-DB-HOU3 - Data Canopy Colocation, LLC | 1K | — | 4 |
| AS54882US | CONNECTIVITY-IN-A-BOX - Connectivity In a Box, LLC | 1K | — | 4 |
| AS402174US | SHIELDITSM-01 - Shield ITSM, LLC | 1K | 2 | 6 |
| AS401435US | CRWD-IT-NET-ASN - CrowdStrike, Inc. | 1K | — | 3 |
| AS62861US | RAYCOM-MEDIA-RSA - Gray Media, Inc. | 1K | — | 4 |
| AS397288US | MCREY - McNaughton-McKay Electric Company | 1K | — | 4 |
| AS62552US | SANMARINOUSD - San Marino Unified School District | 1K | — | 1 |
| AS18568US | BIDTELLECT - Bidtellect Inc. | 1K | — | 2 |
| AS40502US | AAA-ACS - The Auto Club Group | 1K | — | 1 |
| AS23043US | ROVER-WIRELESS - Rover Wireless Corporation | 1K | — | 1 |
| AS40648US | LEE-BOCC-AS - Lee County BoCC | 1K | — | 3 |
| AS23409US | AS-FOFCOS - Focus on the Family | 1K | — | 3 |
| AS399339US | AERON-01 - Taurus Technology Investment Partners | 1K | — | 4 |