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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 |
| AS397248US | FRACTALVISION-1 - FractalVision | 512 | 4.1K | 3 |
| AS153453US | HONGSHIN-AS-AP - Hongshin, Inc. | 512 | — | 2 |
| AS397331US | DRIVE - DRIVE | 512 | — | 1 |
| AS398888US | RAPIDWIRELESS - Rapid Wireless, LLC | 512 | — | 2 |
| AS19588US | GC-1 - GOR CORPORATION | 512 | — | 2 |
| AS53794US | SDSHERIFF - SDSO | 512 | — | 2 |
| AS55006US | VOLUSIA-SHERIFFS-OFFICE - Volusia Sheriff's Office | 512 | — | 2 |
| AS32009US | PERFECTSERVE-INC - PERFECTSERVE, INC. | 512 | — | 2 |
| AS14830US | PFA-BETH-AS-1 - ProFund Advisors LLC | 512 | — | 2 |
| AS393505US | CENTRACU - Centra Credit Union | 512 | — | 2 |
| AS62711US | MAXWELL - Maxwell Telecom LLC | 512 | — | 2 |
| AS14512US | BENTLEY-AS - Bentley University | 512 | — | 1 |
| AS395551US | CARHA-ASN - CARHARTT Inc. | 512 | — | 2 |
| AS19085US | TGNA-KSDK - TEGNA Inc. | 512 | — | 2 |
| AS27543US | ELLIOTTMGMT - Elliott Associates | 512 | — | 2 |
| AS401687US | AMNS CALVERT - AM/NS Calvert LLC | 512 | — | 2 |
| AS54866US | TCS-EDUCATION-SYSTEM - TCS Education System | 512 | — | 2 |
| AS401645US | DATAIMPULSE-AS - Softoria LLC | 512 | — | 2 |
| AS46854US | KONAM - Konami Gaming, Inc. | 512 | — | 2 |
| AS30503US | FPM-ATLANTA - FLORIDA PENINSULA MANAGERS, LLC | 512 | — | 2 |
| AS13779US | BASISTECH - Basis Technology | 512 | — | 2 |
| AS395613US | ASNFPT300 - Footprint Solutions | 512 | — | 2 |
| AS30634US | GSIC-VA - Radial, Inc. | 512 | — | 2 |
| AS395402US | NAR-19 - National Association of Realtors | 512 | — | 2 |
| AS11082US | ECH-ASN-EASTMAN-CHEMICAL - Eastman Chemical Company | 512 | — | 2 |
| AS394467US | WEXINC-AOC - WEX INC | 512 | — | 2 |
| AS393925US | SAMUEL-A-RAMIREZ-AS - Samuel A. Ramirez & Company, Inc | 512 | — | 2 |
| AS5642US | ASHDOWN-TECH - Ashdown Technologies, Inc. | 512 | — | 2 |
| AS393300US | TCC-INTERNET1 - The Cato Corporation | 512 | — | 2 |
| AS26707US | NSN-ORLEANS - North Shore Networks LLC | 512 | — | 2 |
| AS400731US | VTS-SERVICES - VTS Services Inc | 512 | 1 | 3 |
| AS62884US | HKLAW - Holland & Knight LLP | 512 | — | 2 |
| AS402705US | ALIGN-BROADBAND - Align | 512 | — | 1 |
| AS397352US | MEDISYS-36 - Medisys Health Network, Inc. | 512 | — | 2 |
| AS36460US | WATTSCORPORATEASN - Watts Water Technologies, Inc. | 512 | — | 2 |
| AS26507US | CTSINET - Computer Transition Services, Inc. | 512 | — | 2 |
| AS40536US | PIXELDECK - PixelDeck Hosting, LLC | 512 | 4 | 6 |
| AS63443US | DC7 - NORTHWEST FEDERAL CREDIT UNION | 512 | — | 2 |
| AS394220US | AMWAYCENTER - Orlando Venues | 512 | — | 2 |
| AS63348US | CHEWY-COM - chewy.com LLC | 512 | — | 1 |
| AS396337US | DE - Dreisbach Enterprises, Inc. | 512 | — | 2 |
| AS32697US | NMFN - NM Fiber Network, LLC | 512 | 65.5K | 3 |
| AS53934US | SZW-INC - SUB-ZERO GROUP, INC. | 512 | — | 2 |
| AS398150US | OSV - ONESOURCE VIRTUAL Inc. | 512 | — | 2 |
| AS398665US | CSBSO - COUNTY OF SAN BERNARDINO | 512 | — | 2 |
| AS29943US | UNITEDSOLUTIONS - United Solutions Company | 512 | — | 2 |