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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,162 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 3,670 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,950 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| 256 |
| — |
| 1 |
| AS400637US | MO-LAGERS-01 - Missouri Local Government Employees Retirement System | 256 | — | 1 |
| AS21518US | INTEGRIS-HEALTH - Integris Health, Inc. | 256 | — | 1 |
| AS19386US | STTX-SPOKANE - Spokane Tribe Telecommunications Exchange, LLC | 256 | — | 1 |
| AS393804US | MIDLANDPAPER - Midland Paper Company | 256 | — | 1 |
| AS399529US | KIRKLAND-ELLIS-AU - Kirkland & Ellis LLP | 256 | — | 1 |
| AS46828US | MILESK-AS1 - SILVER STAR BRANDS, INC. | 256 | — | 1 |
| AS31980US | BAUPOST - The Baupost Group, LLC | 256 | — | 1 |
| AS10US | CSNET-EXT-AS - CSNET Coordination and Information Center (CSNET-CIC) | 256 | — | 1 |
| AS20449US | AHS-RANDOLPHHEALTH - Randolph Health | 256 | — | 1 |
| AS36744US | ELYSIA - Valex Cloud LLC | 256 | 16 | 2 |
| AS47051US | SV-4 - Storm8, Inc | 256 | — | 1 |
| AS197767US | Zgocloud ZgoShop, Inc. | 256 | 256 | 2 |
| AS32933US | CERES-UNIFIED-SCHOOL-DISTRICT - Ceres Unified School District | 256 | — | 1 |
| AS36613US | TRADER1-CHICAGO - York Business Associates, LLC | 256 | — | 1 |
| AS397844US | FORESCOUT - Forescout Technologies Inc. | 256 | — | 1 |
| AS53613US | VIA-METRO-01 - VIA Metropolitan Transit | 256 | — | 1 |
| AS394608US | KEXP-AS-NAME - KEXP | 256 | — | 1 |
| AS396189US | ABI - ABI Research | 256 | — | 1 |
| AS21619US | GREYWOLF-CAPITAL - Greywolf Capital Management LP | 256 | — | 1 |
| AS397597US | RHF-ASN - RHF Investments | 256 | — | 1 |
| AS22721US | SPC-12 - Saint Peter's University | 256 | — | 1 |
| AS398189US | NFOCUS-01 - NFOCUS CONSULTING INC. | 256 | — | 1 |
| AS395858US | RAVINIA-BGP - RAVINIA FESTIVAL ASSOCIATION | 256 | — | 1 |
| AS214732US | RATATOSKR RATATOSKR LLC | 256 | 3 | 4 |
| AS398279US | KITCHELL-CORP - KITCHELL CORPORATION | 256 | — | 1 |
| AS394483US | DSS - Doyle Security Systems, Inc. | 256 | — | 1 |
| AS400166US | CPC-COGENT-BLOCK - Cheyenne Propagation Company | 256 | — | 1 |
| AS138454US | TFC-121-138454 - Trinity Fellowship | 256 | — | 1 |
| AS396159US | PUD3-WA - PUD3 | 256 | — | 1 |
| AS401530US | RETAILSOLUTIONS-ASN-01 - Retail Solutions, LLC | 256 | — | 1 |
| AS399303US | VOLLI878463 - Volli Communications, Inc | 256 | — | 1 |
| AS19827US | CCC-AS - City of Carson City | 256 | — | 1 |
| AS401378US | HTMONI - HTMONI TECHNOLOGY LLC | 256 | — | 1 |
| AS40823US | SPORTS-ENDEAVORS - Sports Endeavors Inc. | 256 | — | 1 |
| AS401908US | ASTROSHAPES-OH-01 - ASTRO SHAPES LLC | 256 | — | 1 |
| AS206226US | LITTLEORBIT Little Orbit Inc. | 256 | 16 | 2 |
| AS393756US | TX-TCU - texanscu | 256 | — | 1 |
| AS11586US | JOHNSON-OUTDOORS - Johnson Outdoors, Inc. | 256 | — | 1 |
| AS397987US | RBC-DEN1 - RedBaron Consulting, LLC | 256 | — | 1 |
| AS394718US | HISCOX - Hiscox Insurance Company Inc. | 256 | — | 1 |
| AS1323US | ANSBB-ASNNET-1 - Verizon Business | 256 | — | 1 |
| AS401640US | BULKVM - BULKVM LLC | 256 | 1 | 2 |
| AS14191US | HT-WATERBURY-INC-01 - H&T Waterbury, INC | 256 | — | 1 |
| AS32763US | BS32BJB-HF - Building Service 32BJ Benefit Funds | 256 | — | 1 |
| AS402387US | JIANYUELAB-BACKBONE - JianyueLab | 256 | 16 | 2 |
| AS29947US | KIRKLAND-ELLIS-OC - Kirkland & Ellis LLP | 256 | — | 1 |