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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 |
| CIS-MSISAC - Center for Internet Security |
| 512 |
| — |
| 2 |
| AS400996US | UNIVERSAL-BROADBAND - AeroSurf | 512 | 65.5K | 3 |
| AS33468US | EOJ1 - Locknet | 512 | — | 2 |
| AS63333US | ASN-ONEOK-INC - ONEOK | 512 | — | 2 |
| AS402187US | AANSYS-NET - AANSys Network LLC | 512 | — | 2 |
| AS26576US | WEBHIWAY-01 - Webhiway Communications LLC | 512 | 4.1K | 3 |
| AS211831US | Canfield Canfield Scientific, Inc. | 512 | — | 2 |
| AS395268US | INSPERITY - Insperity Services, L.P. | 512 | — | 2 |
| AS32334US | CLOUDCALL-AS - CloudCall Inc | 512 | 1 | 3 |
| AS14449US | FIRSTUP-ASN - Firstup, Inc. | 512 | — | 2 |
| AS155US | DNIC-AS-00155 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS13705US | COLQUITT-CONNECT-01 - City of Colquitt | 512 | — | 2 |
| AS401687US | AMNS CALVERT - AM/NS Calvert LLC | 512 | — | 2 |
| AS968US | PACKETFRAME - Packetframe | 512 | 2 | 4 |
| AS402026US | AVIRM-SYSTEMS-INC - Avirm Systems, Inc. | 512 | — | 2 |
| AS54014US | JURASSICINNOVATIONS - Jurassic Innovations, LLC | 512 | 1K | 6 |
| AS40536US | PIXELDECK - PixelDeck Hosting, LLC | 512 | 4 | 6 |
| AS40953US | RCW-ASN-01 - River City Wireless, INC. | 512 | — | 2 |
| AS63214US | MUSL-RANGE1 - Multi-State Lottery Association | 512 | — | 2 |
| AS30425US | UTA-1 - Utah Transit Authority | 512 | — | 1 |
| AS395348US | DATASPINDLE - DataSpindle | 512 | 2K | 4 |
| AS54866US | TCS-EDUCATION-SYSTEM - TCS Education System | 512 | — | 2 |
| AS54357US | FIRST-SOLAR - First Solar, inc. | 512 | — | 2 |
| AS26933US | DIRECTV-SDWAN-LABC-MSDC - DIRECTV, LLC | 512 | — | 2 |
| AS397915US | HALLRECORDS-01 - Hall Records Music | 512 | 16 | 2 |
| AS27201US | COLVA - CITY OF LYNCHBURG | 512 | — | 2 |
| AS218572US | ORG-CLL25-AS CORVID LINK LLC | 512 | — | 2 |
| AS400398US | MFSG - Money Mart Financial Services Group | 512 | — | 1 |
| AS399281US | GMS-US-ATL - ITRON INC. | 512 | 1 | 2 |
| AS26796US | MEUS-DC1 - Mitsubishi Electric US, Inc. | 512 | — | 2 |
| AS396063US | APJ-PUBLIC - HEWLETT PACKARD ENTERPRISE COMPANY | 512 | — | 1 |
| AS26379US | AGILENT-WAD - Agilent Technologies, Inc. | 512 | — | 2 |
| AS22312US | TECO-ENERGY - TECO Energy, LLC | 512 | — | 2 |
| AS399615US | OCU-ASN01 - ORIX Corporation USA | 512 | — | 2 |
| AS55190US | BLUEFIN-BB - Bluefin Payment Systems LLC | 512 | — | 2 |
| AS21982US | PRDCA-ASN - Panasonic R & D Company of America | 512 | — | 2 |
| AS33498US | TALCOTT-RESOLUTION-INSURANCE - Talcott Resolution Life Insurance Company | 512 | — | 2 |
| AS36457US | DISTR-21 - District Photo, Inc. | 512 | — | 2 |
| AS393681US | ALL-BLUE-SOLUTIONS-INC - All Blue Solutions Inc. | 512 | — | 2 |
| AS30107US | JSD2 - West Ada School District | 512 | 256 | 3 |
| AS399445US | TVCC-NET1 - TVCC | 512 | — | 2 |
| AS393931US | HS-AS-001 - HealthStream, Inc. | 512 | — | 2 |
| AS62681US | ACME-WIDGET - Acme Widget LP | 512 | 1 | 3 |
| AS400005US | WILCO-WIRELESS - Wilco Wireless Inc. | 512 | 1K | 4 |
| AS399805US | GOLIAD-01 - Goliad Technologies | 512 | 2 | 4 |
| AS1087US | ISD271 - Bloomington Public School District | 512 | — | 1 |
| AS21970US | PCESYSTEMS - PCE Systems | 512 | — | 2 |