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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,143 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,820 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,994 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,278 |
| — |
| 0 |
| AS402451US | ZOOM-CORPNET-PEER-01 - Zoom | — | — | 0 |
| AS402383US | KUMREZ - Kumrez | — | — | 0 |
| AS401942US | ECHO911 - Echo911 PSAP 8753 | — | — | 0 |
| AS400356US | TRITECH-WIRELESS-01 - Tritech Fiber | — | — | 0 |
| AS46386US | ZANA-AS-2 - Osir, Inc. | — | 32 | 1 |
| AS402129US | AENTE-HEALTHTECH-AS - AENTE INC | — | — | 0 |
| AS402034US | WP1 - Winnr | — | — | 0 |
| AS402093US | UPHOST - DigitalHost LLC | — | — | 0 |
| AS398315US | AS-SSS - Selective Service System | — | — | 0 |
| AS398253US | KYOYA-HNLWS-MEZZANINE-01 - Sheraton Waikiki Beach Resort | — | — | 0 |
| AS397852US | PRIVATELINE-SWITCH-01 - Private Line, LLC | — | — | 0 |
| AS5804US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS4221US | DNIC-ASBLK-04214-04221 - United States Department of Defense (DoD) | — | 2 | 2 |
| AS397265US | DIGITALWORX - Digital Worx, Inc | — | — | 0 |
| AS203069US | Thomas-Brown Thomas Riley Brown | — | 65.8K | 6 |
| AS397240US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS396857US | WPC-V1 - The Northern Trust Company | — | — | 0 |
| AS5936US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5207US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS401671US | ACCESSPARKS-POPS - ACCESSPARKS LLC | — | 76 | 37 |
| AS4950US | ASN-SPRN-NYSERNET1 - SPRINT, Business Serices Group | — | — | 0 |
| AS402537US | YMISO - YMISO | — | 32 | 2 |
| AS5326US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS21662US | ONGLOBIX - OnGlobix, LLC | — | 65.5K | 1 |
| AS402663US | PHOENIXNET-LABS - PhoenixNet-Labs | — | 4 | 4 |
| AS402695US | SPUZE - SPUZE | — | 256 | 1 |
| AS4312US | FYI - FYI Networks | — | — | 0 |
| AS354US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | 512 | 2 |
| AS4207US | NET-INTRNET - Allied Access Inc. | — | — | 0 |
| AS168US | UMASS-AMHERST - University of Massachusetts - AMHERST | — | 256 | 1 |
| AS4245US | ECHO-AS - Echo Communications Group, Inc. | — | — | 0 |
| AS216124US | C-RAM-AS C-Ram Inc. | — | 256 | 1 |
| AS219205US | ROWENIX_DIGITAL ROWENIX DIGITAL SOLUTIONS LLC | — | — | 0 |
| AS213073US | BYTESIZE Bytesize Internet LLC | — | 1 | 1 |
| AS5925US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS200332US | FOLFY-ASN Nolan Trapp | — | 1 | 1 |
| AS5649US | KEVNET-ASN - Kevin Communication Services | — | — | 0 |
| AS400395US | HONGSHIN-AS-NA - Hongshin, Inc. | — | 1 | 1 |
| AS7158US | NETFEED-AS - NetEx Online Services | — | — | 0 |
| AS60614US | OwO-NETWORK OwO Network, LLC | — | 16 | 1 |
| AS210562US | WURZELLOS WURZELLOS LLC | — | 259 | 4 |
| AS207556US | SERVERFORGE - ServerForge LLC | — | 64 | 1 |
| AS5684US | GANNETT-NET - Gannett Company, Inc. | — | — | 0 |
| AS1542US | DNIC-ASBLK-01534-01546 - Headquarters, USAISC | — | 256 | 1 |
| AS401878US | WBC-ASN-04 - Weigel Broadcasting Co | — | — | 0 |
| AS16626US | DATABANK-ZCOLO - zColo | — | 1 | 1 |