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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,143 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 | 3,820 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,994 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,278 |
| 140K |
| 4.1M |
| 316 |
| AS17052US | TARGET - Target Corporation | 139.8K | — | 8 |
| AS14499US | ALORICA - ALORICA INC | 139.8K | — | 29 |
| AS22US | DNIC-AS-00022 - Navy Network Information Center (NNIC) | 139.5K | 2 | 7 |
| AS393750US | TRUMAN-STATE-UNIVERSITY - Truman State University | 139.5K | — | 23 |
| AS675US | MSUS-AS - Minnesota State Colleges and Universities | 139.3K | 65.5K | 4 |
| AS26554US | US-SIGNAL - US Signal Company, L.L.C. | 139.3K | 131.1K | 37 |
| AS27274US | CMICH - Central Michigan University | 139.3K | 65.5K | 4 |
| AS39855US | MOD-EU Mod Mission Critical LLC | 139K | 5 | 504 |
| AS336US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 139K | 256 | 26 |
| AS26934US | UNIVERSITY-OF-MISSOURI---COLUMBIA - University of Missouri-Columbia | 138.8K | 17 | 9 |
| AS21766US | BEN-LOMAND-TEL - BEN LOMAND RURAL TELEPHONE COOPERATIVE, INC. | 138.8K | 1.1M | 102 |
| AS1530US | DNIC-ASBLK-01529-01530 - Headquarters, USAISC | 138.5K | 256 | 18 |
| AS6059US | UMS2-ASN - University System of Maryland | 138.5K | 256 | 7 |
| AS46450US | PILOT - Pilot Fiber, Inc. | 138.5K | 65.6K | 160 |
| AS7867US | TECHDATA - TECH DATA CORPORATION | 138K | — | 30 |
| AS11809US | NET-ERAU-PRC - Embry-Riddle University | 138K | — | 15 |
| AS26101US | YAHOO-BF1 - Yahoo Holdings Inc. | 138K | 16 | 83 |
| AS747US | DNIC-AS-00747 - Headquarters, USAISC | 138K | 1 | 47 |
| AS10242US | USINTERNET - US Internet Corp | 137.7K | 1M | 37 |
| AS25996US | FBICJIS - FBI Criminal Justice Information Services | 137.7K | 516 | 42 |
| AS377US | SNLA-NET-AS - Sandia National Laboratories | 137.7K | 1 | 11 |
| AS27026US | NETWORKMARYLAND - networkMaryland | 137.7K | 65.5K | 27 |
| AS53813US | ZSCALER-INC - ZSCALER, INC. | 137.7K | 5.9K | 387 |
| AS33442US | ZEBRA-TECHNOLOGIES-BGP-AS-NUMBER - Zebra Technologies Corporation | 137.2K | 2 | 28 |
| AS88US | PRINCETON-AS - Princeton University | 137.2K | 4.1K | 10 |
| AS7973US | MAYO - Mayo Foundation for Medical Education and Research | 137.2K | — | 15 |
| AS401783US | TOKALA-COMMUNICATIONS - TOKALA COMMUNICATIONS INC. | 137K | — | 422 |
| AS36315US | SERVPAC - Servpac Inc. | 136.7K | — | 34 |
| AS35US | MITRE-AS-1 - The MITRE Corporation | 136.4K | — | 9 |
| AS2642US | LEG-CA-GOV - California Department of Technology | 136.2K | — | 22 |
| AS5723US | JHU - Johns Hopkins University | 135.9K | 65.5K | 9 |
| AS22093US | CCF-NETWORK - Cleveland Clinic Foundation | 135.4K | — | 13 |
| AS35985US | ONERINGNET-ATL-1 - One Ring Networks, Inc. | 135.4K | 1.2M | 45 |
| AS3486US | JPMORGAN-AS3486 - JPMorgan Chase & Co. | 134.7K | 80 | 16 |
| AS166US | IDA-AS - Institute for Defense Analyses | 134.7K | — | 18 |
| AS27US | UMDNET - University of Maryland | 134.7K | 6 | 11 |
| AS14373US | UTMB - University of Texas Medical Branch | 134.7K | — | 15 |
| AS394534US | CITYOFCHICAGO-ASN-01 - City of Chicago | 134.4K | — | 11 |
| AS10497US | WORLDBANK - IBRD | 134.4K | 4.1K | 14 |
| AS27185US | DHS-INTERNET - Danbury Hospital - ITG | 134.4K | — | 10 |
| AS26801US | ZITOMEDIA611 - Zito Media, L.P. | 134.4K | 1.1M | 64 |
| AS3724US | ALASKA-ANET - State of Alaska | 134.3K | — | 14 |
| AS20478US | GENMILLS - General Mills, Inc. | 134.1K | — | 12 |
| AS4246US | NJIT-AS - New Jersey Institute of Technology | 134.1K | — | 12 |
| AS21693US | BGP-ASN-21693 - Xcel Energy Inc. | 134.1K | — | 14 |
| AS31US | CIT - California Institute of Technology | 134.1K | 65.5K | 13 |