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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 |
| DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) |
| — |
| — |
| 0 |
| AS459US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS6983US | ITCDELTA - Windstream Communications LLC | — | — | 0 |
| AS5679US | PBI-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5336US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5649US | KEVNET-ASN - Kevin Communication Services | — | — | 0 |
| AS402690US | PCSD25 - Pocatello | — | — | 0 |
| AS402685US | NEBIUS-NA-SOUTH - Nebius | — | — | 0 |
| AS402513US | AIRWAVE-AS - Airwave | — | — | 0 |
| AS5244US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS402325US | SOUTHERN-TIER-NETWORK-NY - Southern | — | — | 0 |
| AS402280US | BWRSD - Bristol Warren Regional School District | — | — | 0 |
| AS402129US | AENTE-HEALTHTECH-AS - AENTE INC | — | — | 0 |
| AS402202US | GEOFIBER - GeoFiber Broadband and Internet Services LLC | — | — | 0 |
| AS401980US | AS-OZKAY - Ozkay LLC | — | — | 0 |
| AS402367US | POLARSEC-NET - PolarSec | — | — | 0 |
| AS480US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS6593US | CITIZEN1 - Citizen 1 Software | — | — | 0 |
| AS236US | MERIT-AS-13 - Merit Network Inc. | — | — | 0 |
| AS403190US | MC-AS1 - USP | — | — | 0 |
| AS403189US | US-HOSTING-AS - LEAPNET | — | — | 0 |
| AS403018US | TITANFORGE - NodeNinja | — | — | 0 |
| AS83US | DNIC-AS-00083 - Headquarters, USAISC | — | — | 0 |
| AS1469US | DNIC-ASBLK-01469-01470 - Headquarters, USAISC | — | — | 0 |
| AS1468US | DNIC-ASBLK-01467-01468 - Headquarters, USAISC | — | — | 0 |
| AS1350US | SEARSNET-AS - Sears Technology Services Incorporated | — | — | 0 |
| AS1392US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1033US | HPE-AMS-CFC - HEWLETT PACKARD ENTERPRISE COMPANY | — | — | 0 |
| AS310US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS581US | AMC-MAF-C2-ENCLAVES - Air Force Systems Networking | — | — | 0 |
| AS3619US | MCIASN-BLK - Verizon Business | — | — | 0 |
| AS751US | MERIT-AS-17 - Merit Network Inc. | — | — | 0 |
| AS4600US | LINK-OREGON-RESEARCH - University of Oregon | — | — | 0 |
| AS6441US | BIGBOOK - BigBook | — | — | 0 |
| AS6460US | INTERNEXT - InterNext | — | — | 0 |
| AS6374US | MFS-WEST-AS - MFS Global Network Services, Inc. | — | — | 0 |
| AS6365US | AS6365NET - Internet 1st, Inc. | — | — | 0 |
| AS6202US | NEXTRON - IMV/Internet | — | — | 0 |
| AS6393US | PRYSM-AS - Prysm Technologies | — | — | 0 |
| AS6007US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6000US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS7789US | FISHBONE - Fishbone Communications, Inc | — | — | 0 |
| AS5948US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS7320US | LANCITY - LANcity Company | — | — | 0 |
| AS7318US | FOCALINK-AS - Focalink | — | — | 0 |
| AS6616US | DATASTAR - Datastar, Inc. | — | — | 0 |
| AS6032US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |