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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,268 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,721 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,955 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,300 |
| MERIT-AS-18 - Merit Network Inc. |
| — |
| — |
| 0 |
| AS762US | WELLFLEET-AS - Wellfleet Communications, Inc. | — | — | 0 |
| AS770US | DNIC-AS-00770 - United States Department of Defense (DoD) | — | — | 0 |
| AS796US | AMERITECH-AS - AT&T Services, Inc. | — | — | 0 |
| AS848US | NINJA-IX-MEMPHIS - Richmond-IX Corporation | — | — | 0 |
| AS850US | JACKSONVILLE-IXP - Richmond-IX Corporation | — | — | 0 |
| AS853US | MADISON-IXP - Richmond-IX Corporation | — | — | 0 |
| AS941US | LDCL-BB - LAKSH CYBERSECURITY AND DEFENSE LLC | — | — | 0 |
| AS980US | NORTHERN-CABLE - NORTHERN CABLE AND FIBER, LLC | — | — | 0 |
| AS1014US | GLOBAL-ISP - NetLab Global | — | — | 0 |
| AS1026US | YOUTUBE-TV - YouTube, LLC | — | — | 0 |
| AS1049US | AUI-INTERNET - Armstrong | — | — | 0 |
| AS1066US | ARMIS-01 - Armis | — | — | 0 |
| AS1068US | SERVICES-MREGL-01 - Mischler Real Estate Group, LLC | — | — | 0 |
| AS1291US | DNIC-AS-01291 - United States Department of Defense (DoD) | — | — | 0 |
| AS1322US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1324US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1385US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1458US | DNIC-ASBLK-01458-01460 - Headquarters, USAISC | — | — | 0 |
| AS1486US | DNIC-ASBLK-01486-01487 - Headquarters, USAISC | — | — | 0 |
| AS1487US | DNIC-ASBLK-01486-01487 - Headquarters, USAISC | — | — | 0 |
| AS1558US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1589US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1623US | WDT-NET - Master Call Connections, LLC | — | — | 0 |
| AS1628US | COMMDNS - Community DNS Ltd. | — | — | 0 |
| AS1644US | DNIC-AS-1644 - Headquarters, USAISC | — | — | 0 |
| AS1656US | LM-EIS-GV - Lockheed Martin Corporation | — | — | 0 |
| AS1703US | MIX - University of Minnesota | — | — | 0 |
| AS1778US | DNIC-AS-01778 - United States Department of Defense (DoD) | — | — | 0 |
| AS1806US | COGENT-1806 - Cogent Communications, LLC | — | — | 0 |
| AS1807US | COGENT-1807 - Cogent Communications, LLC | — | — | 0 |
| AS1839US | DNA-SCN - Los Alamos National Laboratory | — | — | 0 |
| AS1845US | AS1843-7 - National Aeronautics and Space Administration | — | — | 0 |
| AS1869US | DISN-PILOTNET15 - RTX BBN Technologies, Inc. | — | — | 0 |
| AS1905US | DRC - Dynamics Research Corporation | — | — | 0 |
| AS1964US | MCI-NETCS - Verizon Business | — | — | 0 |
| AS1978US | DNIC-AS-01978 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1979US | DNIC-AS-01979 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1985US | DNIC-AS-01985 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1995US | DNIC-AS-01995 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2034US | NGIS-AS2 - Northrop Grumman Corp. | — | — | 0 |
| AS2051US | CISCO-EXT - CISCO SYSTEMS, INC. | — | — | 0 |
| AS2056US | AOL-AS - Yahoo Holdings Inc. | — | — | 0 |
| AS2166US | HPINC - HP Inc. | — | — | 0 |
| AS2573US | QED-SYS - QED Systems, Inc. | — | — | 0 |
| AS2581US | GAO - U.S. Government Accountability Office | — | — | 0 |
| AS2622US | DNIC-AS-02622 - United States Department of Defense (DoD) | — | — | 0 |