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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 | 3,136 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.5M | 20,721 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 73.1M | 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC |
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.
| 68.3M |
| 366 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 66.4M | 1,106 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 47.9M | 3,574 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,926 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.2M | 4,508 |
| DELL-BLK - Dell, Inc. |
| — |
| — |
| 0 |
| AS3505US | WINDSTREAM - Windstream Communications LLC | — | — | 0 |
| AS10892US | ISSI - Infinite Software Solutions, Inc. | — | — | 0 |
| AS10853US | ANDERSENCORP - Andersen Corporation | — | — | 0 |
| AS10601US | ELNET - elNet - Electro Link Network, Inc. | — | — | 0 |
| AS8123US | POLYBASE - Polybase | — | — | 0 |
| AS8170US | MICROAGE - MicroAge Computer Centers, Inc. | — | — | 0 |
| AS12000US | FMR-AS4 - FMR LLC | — | — | 0 |
| AS401756US | SWANROE - Swanroe Internet Cooperative LLC | — | 4.1K | 1 |
| AS11111US | THOMSON-REUTERS - Thomson Reuters Holdings Inc | — | — | 0 |
| AS11424US | TEMPLE-UNIVERSITY-HEALTH-SYSTEM - Temple University Health System, Inc. | — | — | 0 |
| AS11234US | DEF-ASN-001 - Drew Eckl & Farnham, LLP | — | — | 0 |
| AS11154US | SWS - Hilltop Securities Inc. | — | — | 0 |
| AS10861US | E-Z-NET - E-Z.Net, Inc | — | — | 0 |
| AS10648US | PACIFICBROK - Pacific Brokerage Services | — | — | 0 |
| AS7197US | SMS - Siemens Medical Services | — | — | 0 |
| AS398394US | DF-HADDEN - DF Supply, Inc. | — | 1 | 1 |
| AS8028US | PROAXIS - ProAxis Communications, Inc. | — | — | 0 |
| AS6997US | SILLS-AS - SILLS CUMMIS EPSTEIN & GROSS | — | — | 0 |
| AS6969US | N2K-ASN - N2K Inc. | — | — | 0 |
| AS6967US | AS6967 - Metronet | — | — | 0 |
| AS8112US | VRIS-8112-8115 - Verizon Business | — | — | 0 |
| AS6552US | C2NET - Community ConneXion, Inc. | — | — | 0 |
| AS8089US | GRYPHONNETWORKS - GRYPHON NETWORKS CORP. | — | — | 0 |
| AS401574US | WIFIRESAS01 - Wifires Communications, LLC | — | 81.9K | 2 |
| AS3990US | UTELFLA - Sprint/United Telephone-Florida | — | — | 0 |
| AS6096US | SYSNET-1 - Sysnet Corp | — | — | 0 |
| AS6177US | COGENT-6177 - Cogent Communications, LLC | — | — | 0 |
| AS6073US | ETI - KAPS, Inc | — | — | 0 |
| AS199018US | ASXKRME Xkrme Network LLC | — | 135 | 9 |
| AS5221US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS4376US | DSW-INET - Dahlin Smith White, Inc. | — | — | 0 |
| AS4272US | MDN - Metropolitan Data Networks | — | — | 0 |
| AS4255US | BAIN - Bain And Company | — | — | 0 |
| AS4067US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4078US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS5701US | HEALTH-ONE - HealthOne | — | — | 0 |
| AS402240US | WAYFIRE TECHNOLOGIES LLC - Wayfire Technologies LLC | — | 1 | 1 |
| AS4924US | NIIA-NET - Northern Indiana Internet Access, Inc. | — | — | 0 |
| AS5123US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5013US | EMTF-IZM - Air Force Systems Networking | — | — | 0 |
| AS6484US | LUMEN-LEGACY-LEVEL3-RUSSIA - Level 3 Parent, LLC | — | — | 0 |
| AS4587US | ONEWORLD2 - One World Internetworking, Inc | — | — | 0 |
| AS211233US | Ronsor-LLC Ronsor LLC | — | 17 | 2 |
| AS4551US | CL-260-4551 - CyrusOne LLC | — | — | 0 |
| AS394557US | ROKU - Roku Inc. | — | 2 | 2 |
| AS7130US | THEMALL - Internet in a Mall, Inc | — | — | 0 |