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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 |
| 512 |
| 258 |
| 5 |
| AS40747US | HSINYIPTELTD-AS-AP - Hsin Yi Pte Ltd | 512 | — | 2 |
| AS394880US | VITALEDGE - e-Emphasys Technologies Inc | 512 | — | 2 |
| AS19188US | SJ-ARMANINO-01 - Armanino LLP | 512 | — | 2 |
| AS400421US | AS-SOFTHEON - Softheon, Inc. | 512 | — | 1 |
| AS54228US | INVTECHNOLOGIES - Invision Technologies, LLC | 512 | — | 2 |
| AS40044US | BRONSON-HEALTHCARE-GROUP-INC - Bronson Healthcare Group, Inc. | 512 | — | 1 |
| AS400013US | WAUPACA-FOUNDRY-INC - Waupaca Foundry, Inc. | 512 | 5 | 7 |
| AS11760US | CHFA - Connecticut Housing Finance Authority | 512 | — | 2 |
| AS401347US | LCS-FIBERCOM-LLC - LCS Fibercom LLC | 512 | — | 2 |
| AS32443US | US-REPSOLSERVICESCOMPANY - Repsol Services Company | 512 | — | 2 |
| AS32598US | BLACK-HILLS-BROADBAND-NET-1 - Opzix | 512 | — | 2 |
| AS397560US | 300-SAHARA - 300 West Sahara, LLC | 512 | — | 2 |
| AS396893US | WWMS - mitelefono.com | 512 | 65.5K | 4 |
| AS46832US | UNIVERSITY-OF-MISSOURI-SYSTEM-INTER-CAMPUS-NETWORK - University of Missouri - dba the Missouri Research and Education Network (MOREnet) | 512 | — | 2 |
| AS13570US | AS13570 - Angelo, Gordon & Co., L.P. | 512 | — | 2 |
| AS19364US | SEBAGO-FIBER - Sebago Fiber & Wifi, LLC | 512 | 4.1K | 3 |
| AS22151US | BREAN-CAPITAL - Brean Murray & Co., Inc. | 512 | — | 2 |
| AS29993US | NCC-23-ASN - North Central College | 512 | — | 2 |
| AS394499US | DIMENSIONAL - Dimensional Fund Advisors | 512 | — | 2 |
| AS62722US | CSF-ASN-01 - Central States Southeast and Southwest Areas Health and Welfare and Pension Funds | 512 | — | 2 |
| AS19733US | DCU-LCO1 - Digital Federal Credit Union | 512 | — | 2 |
| AS14508US | THEMASCHHOFFS - The Maschhoffs, LLC | 512 | — | 2 |
| AS13814US | RCB1936 - RCB Bank | 512 | — | 2 |
| AS398322US | ESFCU-01 - Educational Systems Federal Credit Union | 512 | — | 2 |
| AS395654US | AGNCAS - AGNC Mortgage Management, LLC | 512 | — | 2 |
| AS11379US | WHG11379 - Wyndham Hotel Group, LLC | 512 | — | 2 |
| AS401847US | 321-WLCS-ASN - 321 Communications, Inc. | 512 | 2 | 4 |
| AS7133US | NYPP-AS - New York Independent System Operator, Inc. | 512 | 1 | 3 |
| AS394850US | CITY-OF-CAPE-CORAL - City of Cape Coral | 512 | — | 2 |
| AS398048US | THR - THERMOS L.L.C. | 512 | — | 2 |
| AS402517US | DATAWORLDNET - Data | 512 | — | 2 |
| AS4900US | ASN1 - Montgomery County Hospital District | 512 | — | 2 |
| AS399781US | AE - AE Hosting | 512 | — | 2 |
| AS26021US | AS-DNS3 - Unicycle, LLC | 512 | 4 | 4 |
| AS395130US | DAY-PITNEY-LLP - Day Pitney LLP | 512 | — | 2 |
| AS398125US | EXODUSPOINT-CAPITAL-MANAGEMENT-US - ExodusPoint Capital Management, L.P. | 512 | — | 2 |
| AS29868US | DRW-HOLDINGS - DRW Holdings, LLC | 512 | — | 2 |
| AS54639US | APOG-OSU-OK - Apogee Telecom Inc. | 512 | — | 1 |
| AS26283US | SFCU-AS1 - SchoolsFirst Federal Credit Union | 512 | — | 2 |
| AS14100US | GARBERMAN01 - GARBER MANAGEMENT GROUP, INC. | 512 | — | 2 |
| AS30258US | HUNTINGTONMEMORIALHOSPITAL - Huntington Memorial Hospital | 512 | — | 2 |
| AS10858US | HYPER-BNG-ASN - Hypertherm Inc. | 512 | — | 2 |
| AS33402US | BULLITT-COMMUNICATIONS - Bullitt Communications | 512 | 4.1K | 2 |
| AS22234US | RELATED-COMPANIES-BGP-AS1 - The Related Companies, Inc. | 512 | — | 2 |
| AS18539US | DAYTON-SUPERIOR-MIAMISBURG - DAYTON SUPERIOR CORPORATION | 512 | — | 2 |
| AS401338US | NYCRE-ALB - NY CREATES | 512 | — | 1 |