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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 |
| RGHQ-ASN-ONE - rateGenius inc. |
| — |
| — |
| 0 |
| AS393949US | BASTETRIX - Bastetrix LLC | — | — | 0 |
| AS5132US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | 6 | 6 |
| AS7882US | SPRINT-HAWAII - Sprint Hawaii | — | — | 0 |
| AS393543US | IMPAQ-INTERNATIONAL - IMPAQ International LLC | — | — | 0 |
| AS395294US | RED-VENTURES - Red Ventures, LLC | — | — | 0 |
| AS395264US | TREKNETWORKS - Network Resource Technologies Corp | — | — | 0 |
| AS620US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS402653US | WCUUSD-2026-ASN - Washington | — | 16 | 1 |
| AS394848US | PULSE-2 - Pulse | — | — | 0 |
| AS215188US | KALLSYMS Nicholas Gregory | — | 16 | 1 |
| AS6603US | MTWEST208 - CottonWood CyberVentures | — | — | 0 |
| AS12263US | STBH - Saint Bernard Hospital | — | — | 0 |
| AS11616US | PEAPOD - Peapod, Inc. | — | — | 0 |
| AS11413US | IHERB-AS-IHERB-NETWORKS - IHERB INC | — | — | 0 |
| AS400429US | ALTHEA - Hawk Networks Inc | — | 8 | 1 |
| AS13346US | CENTURION-MEDICAL-PRODUCTS - Centurion Medical Products Corporation | — | — | 0 |
| AS11092US | HEVANET - Hevanet | — | — | 0 |
| AS13484US | 3DE - 3D EXHIBITS INC | — | — | 0 |
| AS13425US | JUNO-DC-1 - Juno Online Services, Inc. | — | — | 0 |
| AS12197US | DRUGSTORE-COM - Drugstore.Com, Inc. | — | — | 0 |
| AS11456US | NUVOX - Windstream Communications LLC | — | — | 0 |
| AS12108US | PROFITDEV - PROFIT DEVELOPERS INC | — | — | 0 |
| AS218794US | XORIST James Jones | — | 1 | 1 |
| AS4233US | DWRSCADA - State of Caligornia | — | — | 0 |
| AS3781US | USBM-PGH - U.S. Department of the Interior | — | — | 0 |
| AS3625US | MCIASN-2-BLK - Verizon Business | — | — | 0 |
| AS3546US | DNIC-AS-03546 - United States Department of Defense (DoD) | — | — | 0 |
| AS2985US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3032US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS13721US | CDK-GLOBAL-HOSTING - CDK Global, LLC | — | — | 0 |
| AS7208US | MEGANET - MegaNet | — | — | 0 |
| AS10892US | ISSI - Infinite Software Solutions, Inc. | — | — | 0 |
| AS7171US | EA-ONLINE-DC13 - Electronic Arts, Inc. | — | — | 0 |
| AS48818US | AS-NETSER-INC NETSER INC | — | 382 | 127 |
| AS14185US | CBSK - CABLE ONE, INC. | — | — | 0 |
| AS14502US | PADUCAH-LOUISVILLE-RAILWAY-CORP - Paducah & Louisville Railway, Inc. | — | — | 0 |
| AS14258US | ASTAC-ALASKA - Arctic Slope Telephone Association Cooperative, Inc. | — | — | 0 |
| AS402266US | SLDNET - Salad Technologies, Inc. | — | 108 | 108 |
| AS399534US | CREATIVEWIRELESS-01 - Creative Wireless Technology Solutions, Inc. | — | — | 0 |
| AS400917US | ROSE-CIRCUIT2 - Aubrey Rose | — | 8 | 1 |
| AS13644US | TMO-METRO - T-Mobile USA, Inc. | — | — | 0 |
| AS210660US | CAVEFOX CaveFox LLC | — | 257 | 2 |
| AS4487US | EMTF-UPW - Air Force Systems Networking | — | — | 0 |
| AS13507US | KMARTCORPORATION - Sears Holdings Corporation | — | — | 0 |
| AS14880US | TECHOPS-ASN-5 - Live Nation Entertainment, Inc. | — | — | 0 |
| AS14846US | CGNOGE - NBC Internet | — | — | 0 |