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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 | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,245 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,952 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,420 |
| — |
| — |
| 0 |
| AS960US | ORTHOFIX-IDC - Orthofix Medical INC | — | — | 0 |
| AS1016US | TECHNOTIC-SPORTS - Technotic Sports, LLC | — | — | 0 |
| AS1036US | APPLE-RETAIL - Apple Inc. | — | — | 0 |
| AS1260US | PLE - Air Force Systems Networking | — | — | 0 |
| AS1262US | AS1262 - National Aeronautics and Space Administration | — | — | 0 |
| AS1285US | CMC-AS - Communication Machinery Corporation | — | — | 0 |
| AS1333US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1346US | DNIC-AS-01346 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1434US | DWIM-590 - DW Partners, LP | — | — | 0 |
| AS1450US | DNIC-AS-01450 - Headquarters, USAISC | — | — | 0 |
| AS1455US | DNIC-ASBLK-01451-01456 - Headquarters, USAISC | — | — | 0 |
| AS1543US | DNIC-ASBLK-01534-01546 - Headquarters, USAISC | — | — | 0 |
| AS1557US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1599US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1727US | DNIC-AS-01727 - United States Department of Defense (DoD) | — | — | 0 |
| AS1795US | COGENT-1795 - Cogent Communications, LLC | — | — | 0 |
| AS1867US | DISN-PILOTNET13 - RTX BBN Technologies, Inc. | — | — | 0 |
| AS1915US | SEQUOIA-AS - National Science Foundation | — | — | 0 |
| AS1976US | DNIC-AS-01976 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1986US | DNIC-AS-01986 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2009US | BT-CLOUD-CONNECT - INFONET Services Corporation | — | — | 0 |
| AS2582US | CDE - California Department of Education | — | — | 0 |
| AS2644US | SMARTS-AS - System Management ARTS, Inc. | — | — | 0 |
| AS2646US | CONEXANT - Synaptics Incorporated | — | — | 0 |
| AS2741US | DNIC-AS-02741 - United States Department of Defense (DoD) | — | — | 0 |
| AS2759US | MCI-NETC - Verizon Business | — | — | 0 |
| AS2770US | TDHS-WEL-NET - Texas Department of Human Resources | — | — | 0 |
| AS2825US | DB-NA-2 - Deutsche Bank AG | — | — | 0 |
| AS2881US | RHGC-AS - Rensselaer Hartford Graduate Center | — | — | 0 |
| AS2938US | SPRINT-MRN - U.S. Sprint | — | — | 0 |
| AS2949US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2979US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2985US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3009US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3032US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3048US | RICE-AS3048 - Rice University | — | — | 0 |
| AS3074US | CITI8 - Citigroup Inc. | — | — | 0 |
| AS3080US | CITI14 - Citigroup Inc. | — | — | 0 |
| AS3116US | PPCI - Point to Point Communications, Inc. | — | — | 0 |
| AS3483US | COGENT-3483 - Cogent Communications, LLC | — | — | 0 |
| AS3519US | DSI-WR - RTX BBN Technologies, Inc. | — | — | 0 |
| AS3546US | DNIC-AS-03546 - United States Department of Defense (DoD) | — | — | 0 |
| AS3625US | MCIASN-2-BLK - Verizon Business | — | — | 0 |
| AS3680US | NOVELL - Micro Focus | — | — | 0 |
| AS3753US | NSCEE - National Supercomputing Center for Energy and the Environment | — | — | 0 |
| AS3764US | IA-HOU-AS - JAB Wireless, INC. | — | — | 0 |