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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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 | 24,543 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,304 |
| 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.
32,174 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,884 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,999 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,345 |
| 256 |
| — |
| 1 |
| AS63458US | KGPTEL - KGP Telecommunications, Inc. | 256 | — | 1 |
| AS36237US | AECC - Arkansas Electric Cooperative Corporation | 256 | — | 1 |
| AS36270US | STERLING-TRADING-TECH-NY - STT Acquisition Intermediate Holdco, Inc. | 256 | — | 1 |
| AS12225US | CONSUMERINFO1 - Consumerinfo.com, Inc. | 256 | — | 1 |
| AS36484US | ALIGN-JS-CAPITAL - JS CAPITAL MANAGEMENT LLC | 256 | — | 1 |
| AS54797US | AURORA-IL - CITY OF AURORA | 256 | — | 1 |
| AS394348US | ARA-MOLINE - American Rental Association | 256 | — | 1 |
| AS397349US | MUTABLE - Mutable | 256 | — | 1 |
| AS20344US | BILLERICAPS-MA-ASN - Billerica Public Schools | 256 | 1 | 2 |
| AS1492US | DNIC-ASBLK-01492-01493 - Headquarters, USAISC | 256 | — | 1 |
| AS40530US | GREATLAND - Greatland Corporation | 256 | — | 1 |
| AS17349US | INSITU-EQ - Insitu, Inc | 256 | — | 1 |
| AS11076US | COMMUNITY-COMPUTER-SERVICE-INC - COMMUNITY COMPUTER SERVICE INC | 256 | — | 1 |
| AS40435US | LIGADO-1 - Ligado Networks LLC. | 256 | — | 1 |
| AS399436US | CORTLAND-COUNTY - Cortland County Health Department | 256 | — | 1 |
| AS400323US | NEXTITLE - NexTitle | 256 | — | 1 |
| AS394732US | DMOS-1 - Des Moines Orthopaedic Surgeons, P.C. | 256 | — | 1 |
| AS20067US | NAS-GHENT - North American Stainless | 256 | — | 1 |
| AS394756US | CONVO-DAL - Convo | 256 | 1 | 2 |
| AS396992US | LCTCS-BRHQ - LOUISIANA COMMUNITY AND TECHNICAL COLLEGE SYSTEM | 256 | — | 1 |
| AS30339US | DGLAW - Davis & Gilbert LLP | 256 | — | 1 |
| AS46226US | AS46226 - Acciona Energy North America Corporation | 256 | — | 1 |
| AS216044US | Terranode_LLC Terranode LLC | 256 | 3 | 4 |
| AS26647US | MSS1 - Movers Specialty Service | 256 | — | 1 |
| AS32923US | SILVERPNT-CT - SILVER POINT CAPITAL, LP | 256 | — | 1 |
| AS36258US | GEM-SHOPPING-NETWORK - GEM SHOPPING NETWORK | 256 | — | 1 |
| AS394747US | NCAA-NATIONAL-OFFICE - National Collegiate Athletic Association (NCAA) | 256 | — | 1 |
| AS13976US | TOPOCEAN-LAX1 - Topocean Consolidation Service (Los Angeles), Inc. | 256 | — | 1 |
| AS399561US | RTCONN-CDN - Right Connection, Inc. | 256 | 1 | 2 |
| AS399737US | ETHERWARE - Etherware Solutions LLC | 256 | — | 1 |
| AS396322US | PC-ASN - Peace Corps | 256 | 516 | 7 |
| AS395164US | NORTHERNLIGHT - Northern Light Single Point LLC | 256 | — | 1 |
| AS63077US | CMV-1 - ConnectMe, LLC. | 256 | — | 1 |
| AS398567US | LIGHTING-READY-HOSTING-LLC - Lightning Ready Hosting, LLC | 256 | — | 1 |
| AS393979US | OE3-HQ-BGP - Operating Engineers Local #3 | 256 | — | 1 |
| AS26007US | SWICKTECH - Swick Technologies, LLC | 256 | — | 1 |
| AS62562US | SYNCREON-US - Syncreon America Inc | 256 | — | 1 |
| AS14321US | SERVICIO-UNITELLER - Servicio Uniteller, Inc. | 256 | — | 1 |
| AS27341US | GFNET-AS01 - Gannet Fleming, Inc. | 256 | — | 1 |
| AS393377US | JJKA-PUB1 - J. J. Keller & Associates, Inc. | 256 | — | 1 |
| AS53773US | PARACOGAS-ASN - PARACO GAS CORPORATION | 256 | — | 1 |
| AS47068US | GLENSFALLSHOSPITAL - Glens Falls Hospital | 256 | — | 1 |
| AS402229US | ARIA-JAMES - Aria and James | 256 | — | 1 |
| AS26763US | DART-DALLAS - Dallas Area Rapid Transit (DART) | 256 | — | 1 |
| AS35853US | AS35853 - SLUMBERLAND, INC. | 256 | — | 1 |
| AS401285US | MICHIGANVIRTUAL - MICHIGAN VIRTUAL | 256 | — | 1 |