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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| SBIS-ASN-BLK-2 - AT&T Enterprises, LLC |
| — |
| — |
| 0 |
| AS11143US | OECONNECTION - OEConnection, LLC | — | — | 0 |
| AS7077US | NN-RS00-RS06 - NAP.NET, LLC | — | — | 0 |
| AS6963US | DTS-CANADA - Diplomatic Telecommunications Services | — | — | 0 |
| AS13870US | SKYWOLF - Skywolf Technology LLC | — | — | 0 |
| AS6626US | MULTITASKING - Multi-Tasking, Inc. | — | — | 0 |
| AS6357US | DBTECH - DB Technology | — | — | 0 |
| AS6592US | NETUS - Netus, Inc. | — | — | 0 |
| AS7881US | IMGIS - IMGIS | — | — | 0 |
| AS10684US | EMPIRENET - EmpireNet | — | — | 0 |
| AS7327US | 7THLEVEL - 7th Level, Inc. | — | — | 0 |
| AS7293US | SBIS-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5292US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS2969US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS1483US | DNIC-AS-01483 - Headquarters, USAISC | — | — | 0 |
| AS2276US | OCS-AS1 - OpenConnect Systems | — | — | 0 |
| AS2275US | DNIC-AS-02275 - United States Department of Defense (DoD) | — | — | 0 |
| AS5879US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS2760US | MCI-NETD - Verizon Business | — | — | 0 |
| AS5677US | PBI-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5359US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS1570US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS6624US | TYLERVAULT - Tyler Vault | — | — | 0 |
| AS198804US | RISHI-AS Rishi Ram Panthee | — | 512 | 2 |
| AS6004US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5964US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5989US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS4343US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4342US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4254US | DNIC-AS-04254 - Headquarters, USAISC | — | — | 0 |
| AS3972US | AS-SPRINTLINK-NYSERN1 - Sprint, Business Services Group | — | — | 0 |
| AS13772US | THINKTECH-3 - Charles Schwab & Co., Inc. | — | — | 0 |
| AS3578US | MV-COM-ASN - DSCI, LLC | — | — | 0 |
| AS14181US | UBETWIRELESS - UBET Wireless | — | — | 0 |
| AS3498US | NET-SEN-CA-GOV - California State Senate | — | — | 0 |
| AS3466US | DNIC-AS-3466 - United States Department of Defense (DoD) | — | — | 0 |
| AS3383US | REDBRICK-HQ - IBM | — | — | 0 |
| AS3393US | NDEX - National Default Exchange Holdings, LP | — | — | 0 |
| AS3995US | IWEB - Interweb Corporation | — | — | 0 |
| AS395150US | FCPS - Frederick County Public Schools | — | — | 0 |
| AS3830US | COGENT-3830 - Cogent Communications, LLC | — | — | 0 |
| AS3532US | DNIC-AS-03532 - United States Department of Defense (DoD) | — | — | 0 |
| AS1860US | DISN-PILOTNET6 - RTX BBN Technologies, Inc. | — | — | 0 |
| AS1847US | AS1843-7 - National Aeronautics and Space Administration | — | — | 0 |
| AS1552US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1578US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1395US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |