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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 |
| — |
| — |
| 0 |
| AS402016US | ASU-THREERIVERS-AS - Arkansas State University | — | — | 0 |
| AS401980US | AS-OZKAY - Ozkay LLC | — | — | 0 |
| AS6031US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS402093US | UPHOST - DigitalHost LLC | — | — | 0 |
| AS5834US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5805US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5701US | HEALTH-ONE - HealthOne | — | — | 0 |
| AS5725US | XO - Verizon Business | — | — | 0 |
| AS5289US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5276US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS7113US | NFIC-AS - New Frontiers Information Corp. | — | — | 0 |
| AS20153US | ARGUSHEALTH - ARGUS HEALTH SYSTEMS | — | — | 0 |
| AS6576US | MCC-SUM - SUMMIT COMMUNICATIONS SYSTEM, INC. | — | — | 0 |
| AS6552US | C2NET - Community ConneXion, Inc. | — | — | 0 |
| AS5373US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5207US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS4875US | LMC - Long Motor Corporation | — | — | 0 |
| AS4873US | EATON-CORPORATION-2 - Eaton Corporation | — | — | 0 |
| AS4312US | FYI - FYI Networks | — | — | 0 |
| AS4950US | ASN-SPRN-NYSERNET1 - SPRINT, Business Serices Group | — | — | 0 |
| AS4161US | TIN-1 - Air Force Systems Networking | — | — | 0 |
| AS4156US | USDA-1 - USDA | — | — | 0 |
| AS6000US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6008US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5923US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5909US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5866US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS4245US | ECHO-AS - Echo Communications Group, Inc. | — | — | 0 |
| AS5695US | MAILROOM-NT - Allen Bradley Inc. | — | — | 0 |
| AS5712US | RCN-AS4 - RCN | — | — | 0 |
| AS14874US | PITTQIAO-US - PITTQIAO LLC | — | 512 | 2 |
| AS5657US | NOVAIAC-ASN - FC Business Systems | — | — | 0 |
| AS522US | AFSC-SSD-AS - Air Force Systems Networking | — | — | 0 |
| AS480US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS253US | NTTA-253 - NTT America, Inc. | — | — | 0 |
| AS617US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS403195US | AS - Mirinetwork | — | — | 0 |
| AS403187US | QLABS-AS - QOREXA | — | — | 0 |
| AS402967US | OUROBOROS - Swallowtail | — | — | 0 |
| AS163US | IBM-RESEARCH-AS - IBM | — | — | 0 |
| AS2825US | DB-NA-2 - Deutsche Bank AG | — | — | 0 |
| AS2770US | TDHS-WEL-NET - Texas Department of Human Resources | — | — | 0 |
| AS2009US | BT-CLOUD-CONNECT - INFONET Services Corporation | — | — | 0 |
| AS7129US | ANC-AS - American Network Communications, Inc. | — | — | 0 |
| AS1543US | DNIC-ASBLK-01534-01546 - Headquarters, USAISC | — | — | 0 |
| AS1455US | DNIC-ASBLK-01451-01456 - Headquarters, USAISC | — | — | 0 |