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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 |
| — |
| 3 |
| AS501US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 1K | — | 4 |
| AS18612US | TRI-NET-SOLUTIONS - Tri-Net Solutions LLC. | 1K | — | 1 |
| AS14197US | HMS-ASN - HEALTH MARKET SCIENCE | 1K | — | 4 |
| AS36809US | COCG---CITY-OF-CORAL-GABLES - City of Coral Gables | 1K | — | 1 |
| AS27014US | ORLANDO-HEALTH - Orlando Health, INC | 1K | — | 1 |
| AS401250US | FIOPIN - Fiopin | 1K | — | 1 |
| AS396177US | JUMPFIBER - Jump Fiber | 1K | — | 1 |
| AS10779US | STEPBROBD - StepBroBD, Inc. | 1K | 4.1K | 4 |
| AS27562US | RHC-INT - Presence Health Network | 1K | — | 4 |
| AS5697US | NAVE-AS-5697 - Navisite Opco LLC | 1K | — | 1 |
| AS27297US | PGTECHNOLOGY - PG TECHNOLOGY, INC. | 1K | — | 4 |
| AS63149US | AS-SILO - ScienceLogic, Inc | 1K | — | 4 |
| AS396966US | CESL-21-ASN-396966 - Claro Enterprise Solutions, LLC | 1K | 8 | 12 |
| AS402075US | PEEKABO - Peekabo Networks | 1K | — | 4 |
| AS26329US | INSERVER-NETWORKS - InServer Networks | 1K | 1 | 5 |
| AS54661US | EM-22 - Intercontinental Exchange, Inc. | 1K | — | 4 |
| AS33222US | AS33222 - Ashley Furniture Industries, Inc. | 1K | — | 4 |
| AS396120US | DONUTSHIELD - DonutSMP | 1K | — | 3 |
| AS26217US | VPHOLDINGS - V P Holdings, Inc. | 1K | — | 1 |
| AS30233US | PAYCHEX-O - Paychex Inc. | 1K | — | 1 |
| AS33416US | JMCGH-WTH-1950 - West Tennessee Healthcare | 1K | — | 3 |
| AS395478US | ROCKYMOUNTAININTERNET - ROCKY MOUNTAIN INTERNET INC | 1K | — | 1 |
| AS18500US | PACCAR - PACCAR INFORMATION TECHNOLOGY DIVISION | 1K | — | 3 |
| AS19247US | AS19247 - Northwestern Memorial Hospital | 1K | — | 4 |
| AS396862US | NMHS - Nebraska Methodist Health System, Inc. | 1K | — | 3 |
| AS398437US | HOT-SPRINGS-TEL-01 - Hot Springs Telephone Company | 1K | — | 1 |
| AS40722US | CALARTS - California Institute of the Arts | 1K | — | 4 |
| AS32535US | GAYLORD-ROCKIES-01BGPFO - Gaylord Rockies Resort & Convention Center | 1K | — | 1 |
| AS13629US | DEEM-INC - Deem, Inc. | 1K | — | 4 |
| AS30001US | TECHEVOLUTION - Techevolution | 1K | — | 1 |
| AS40725US | UNIVERSAL-CONNECTIVITY-BGP - Universal Connectivity, Inc. | 1K | — | 4 |
| AS40716US | DOTCOMM - DOT.Comm | 1K | 256 | 5 |
| AS18562US | HAWTHORNE - Hawthorne Residents Cooperative Association Inc | 1K | — | 1 |
| AS399256US | FUSD-ASN - Fontana Unified School District | 1K | — | 3 |
| AS12134US | MTB - Manufacturers and Traders Trust Company | 1K | — | 4 |
| AS19780US | AS-INTERMEDIA2 - Intermedia.net, Inc. | 1K | — | 2 |
| AS53355US | CUW-1 - Concordia University Wisconsin | 1K | 1 | 5 |
| AS394927US | AFFINION-GROUP - Affinion Group, Inc. | 1K | — | 4 |
| AS393492US | DIGALERT - Underground Service Alert of Southern California | 1K | — | 3 |
| AS4569US | ASHTON-NET1 - Ashton Systems Corporation | 1K | — | 1 |
| AS36301US | USJHSD-AS - Pagosa Springs Medical Center | 1K | — | 1 |
| AS22885US | ASI - ADVERTISING SPECIALTY INSTITUTE, INC. | 1K | — | 3 |
| AS26053US | SYMPHONYRETAILAI - Symphony Retail AI | 1K | — | 1 |
| AS54549US | VIP-FIBER - City of Vallejo, A municipal corporation | 1K | 65.5K | 4 |
| AS29840US | GRAM-NET2 - Grambling State University | 1K | — | 4 |
| AS36072US | 12COMMAS - 12 Commas LLC | 1K | 256 | 2 |