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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,247 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,189 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,901 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,010 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,222 |
| DATACANOPY-C1-NVA5 - Data Canopy Colocation, LLC |
| 2K |
| — |
| 8 |
| AS46976US | LCPRODASN - Liquidity Connect LLC | 2K | — | 7 |
| AS33444US | ASN-TAZEWELL-CO-VA-GOVT - Tazewell County | 2K | — | 1 |
| AS6169US | CLOUD-42-6169 - Kentik Technologies, Inc. | 2K | 16 | 6 |
| AS18787US | DANAHER - Danaher | 2K | — | 6 |
| AS54562US | RISE-VOIP - JAB Wireless, INC. | 2K | — | 8 |
| AS40685US | ANACOMP-SD - Doculynx Operations, LLC | 2K | — | 1 |
| AS23521US | BSERV-1-AS-23521 - Finastra Merchant Services, Inc. | 2K | — | 2 |
| AS394738US | COLOCROSSING - HostPapa | 2K | — | 4 |
| AS396447US | SILVERIP-MW-ASN - SilverIP Communications Inc. | 2K | — | 6 |
| AS399704US | HALSEY - GigXero Inc | 2K | — | 6 |
| AS399604US | ES10-08873-01 - EXL SERVICE.COM, LLC | 2.1K | — | 9 |
| AS20080US | AMPATH - Florida International University | 2.1K | 98.3K | 9 |
| AS394298US | US-SC-DAL-AS - Airlinq Inc | 2.2K | 2 | 13 |
| AS54769US | ENSEVA - Enseva LLC. | 2.3K | — | 9 |
| AS397455US | HANCOCKTEL - The Hancock Telephone Company | 2.3K | — | 2 |
| AS40508US | MID-AMERICA-NAZARENE-UNIVERSITY - Mid America Nazarene University | 2.3K | — | 2 |
| AS32326US | IDEMIA-IDENTITY-AND-SECURITY-USA-LLC - Idemia Civil Identity NA LLC | 2.3K | — | 9 |
| AS27557US | AS27557 - Catalina Broadband Solutions, LLC | 2.3K | — | 7 |
| AS35935US | POL3-1 - Polarity3 Consulting | 2.3K | 65.5K | 3 |
| AS395576US | WLF - West Liberty Foods | 2.3K | — | 2 |
| AS5108US | PASADENA-ASN - City of Pasadena | 2.3K | — | 6 |
| AS398035US | SKYNET-COMMUNICATIONS - SkyNet Communications LLC | 2.3K | — | 9 |
| AS398479US | Z4NET-AS - Z4 Internet | 2.3K | 65.5K | 7 |
| AS397833US | CITY-OF-VINTON-01 - City of Vinton | 2.3K | — | 2 |
| AS395091US | PLEXUS - Plexus Corp. | 2.3K | — | 2 |
| AS63442US | SERVERFARM - ServerFarm Realty | 2.3K | 1 | 7 |
| AS63436US | GREATLAKESCOMMUNICATION - Great Lakes Communication Corp. | 2.3K | 4.1K | 6 |
| AS400816US | STUPP-FIBER - Stupp Fiber, LLC | 2.3K | 65.5K | 7 |
| AS26735US | MLGW - Memphis Light, Gas & Water | 2.3K | — | 6 |
| AS395743US | STATIC1 - Static 1 LLC | 2.3K | — | 9 |
| AS26351US | MARYVILLE-DATA-CENTER - First Horizon National Corporation | 2.3K | — | 9 |
| AS29903US | WRLC-AS - Washington Research Library Consortium | 2.3K | — | 9 |
| AS6951US | CREDITCALL-NETWORKS - CreditCall Corporation | 2.3K | — | 6 |
| AS10961US | BGP-AS - Boston GigaPoP | 2.3K | — | 2 |
| AS401486US | RAVNIX - RAVNIX LLC | 2.3K | 65.8K | 8 |
| AS30022US | GIA-CARLSBAD - Gemological Institute of America | 2.3K | — | 2 |
| AS399519US | WILDSTAR-NETWORKS-01 - WildStar Networks | 2.3K | — | 4 |
| AS25798US | NTS-HUNTSVILLE-01 - Vexus Fiber | 2.3K | — | 5 |
| AS26718US | WOLVERINE-TRADING-TECHNOLOGIES-LLC - WOLVERINE TRADING TECHNOLOGIES, LLC | 2.3K | — | 9 |
| AS54588US | EQUINIX-EC-SV - Equinix, Inc. | 2.3K | 1 | 9 |
| AS25917US | RA-NA-CNF - ROCKWELL AUTOMATION Inc. | 2.3K | — | 9 |
| AS32369US | THEJOCKEYCLUB - The Jockey Club | 2.3K | — | 5 |
| AS402344US | XPCTECH - XPCTECH | 2.3K | 65.5K | 6 |
| AS21874US | MMC - MMC | 2.3K | — | 2 |
| AS32619US | SCHNUCKS - Schnuck Markets, Inc. | 2.3K | — | 9 |
| AS393689US | NLM-NCCS - National Library of Medicine | 2.3K | 1 | 5 |