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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 | 24,346 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 512 |
| — |
| 1 |
| AS54893US | AUTOLOOP - AutoLoop | 512 | — | 2 |
| AS400470US | REMC10-ASN - Tuscola Intermediate School District | 512 | — | 2 |
| AS25823US | FLAG-ORG - CHURCH OF SCIENTOLOGY FLAG SERVICE ORGANIZATION, INC. | 512 | — | 2 |
| AS395203US | SCHOOLCRAFTDEVELOPMENTAUTHORITY - Schoolcraft Development Authority, Inc | 512 | — | 1 |
| AS397957US | EMEA-PUBLIC - HEWLETT PACKARD ENTERPRISE COMPANY | 512 | — | 2 |
| AS394209US | ECBOCES-VNETS - East Central BOCES | 512 | 65.5K | 3 |
| AS30593US | VORNADO-PUBLIC - Vornado Realty Trust | 512 | — | 2 |
| AS21631US | CHFA-COLORADO - Colorado Housing and Finance Authority | 512 | — | 2 |
| AS400101US | AS-RINGFREE - Ringfree Communications, Inc | 512 | — | 2 |
| AS402423US | LUYANI - Luyani | 512 | — | 2 |
| AS40373US | UMC-NET - University Medical Center, Inc | 512 | — | 1 |
| AS27023US | NTT-DATA-INC - NTT Data Inc | 512 | — | 2 |
| AS36595US | PPI - Payment Processing Inc. | 512 | — | 2 |
| AS27502US | CHOWCHILLADIST - Madera County Office of Education | 512 | — | 2 |
| AS395057US | CAREOREGON - CareOregon | 512 | — | 2 |
| AS401262US | TREDYFFRIN-EASTTOWN-SD - Tredyffrin/Easttown School District | 512 | — | 2 |
| AS19663US | CASS-STL - CASS INFORMATION SYSTEMS | 512 | — | 2 |
| AS396915US | AIRE-INTERNET-01 - Net Vision Communications, LLC | 512 | — | 1 |
| AS12193US | IMAGINE-COMMUNICATIONS - IMAGINE COMMUNICATIONS | 512 | — | 2 |
| AS14911US | TMGAS - Taylor Made Golf Company, Inc. | 512 | — | 2 |
| AS401429US | PRIME-ONE - Prime One Net LLC | 512 | 1.3K | 6 |
| AS399121US | CNB-OF-TEXAS - Citizens National Bank of Texas | 512 | — | 2 |
| AS399556US | ECBOE - Effingham County Board of Education | 512 | — | 1 |
| AS23239US | JAVELINA - Irongrove LLC | 512 | 2 | 4 |
| AS23263US | EL-INTERNET-NORTHWEST - E.L. Internet Northwest | 512 | — | 2 |
| AS30009US | FAPS - First American Payment Systems Inc. | 512 | — | 2 |
| AS396492US | DBISP - dbISP, LLC | 512 | — | 2 |
| AS32025US | HASBRO - Hasbro, Inc. | 512 | — | 2 |
| AS398023US | PVHMC-AS - Pomona Valley Hospital Medical Center | 512 | — | 2 |
| AS11020US | ANSI - RUSTIC RESOURCES, LLC | 512 | 16 | 3 |
| AS30706US | EAMONTREAL - Electronic Arts, Inc. | 512 | — | 1 |
| AS394137US | SCUHS - Southern California University of Health Sciences | 512 | — | 1 |
| AS397719US | TECHSTYLE-FASHION-GROUP - TechStyle, Inc. | 512 | — | 2 |
| AS394679US | GENERAC - Generac Power Systems, Inc. | 512 | — | 2 |
| AS206625US | EHI-AME-AS Enterprise Holdings, Inc. | 512 | — | 1 |
| AS22417US | NYCM-FIRE-CO - New York Central Mutual Fire Insurance Company | 512 | — | 2 |
| AS26109US | L-PERRIGO-GLOBAL - L. Perrigo Company | 512 | — | 1 |
| AS11184US | EG-USEAST - EXPEDIA, INC | 512 | — | 2 |
| AS203990US | acc_eu Accertify LLC | 512 | — | 2 |
| AS32352US | MGRC - MCGRATH RENTCORP | 512 | — | 2 |
| AS53878US | EMC-AS - Dell, Inc. | 512 | — | 2 |
| AS394733US | LALC-ASN - Los Angeles LGBT Center | 512 | — | 2 |
| AS400550US | SM-AS - Suburban Marine, Inc. | 512 | 5 | 7 |
| AS397418US | SYNAMEDIA - Synamedia | 512 | 4.1K | 3 |
| AS401896US | MISIU-USA - MISIU LLC | 512 | 257 | 4 |
| AS400294US | PPI-TREMONT-01 - Precision Planting LLC | 512 | — | 2 |