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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 | 24,555 |
| 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 |
| 232 |
| 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 | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 512 |
| 65.5K |
| 2 |
| AS393488US | CVR-ENERGY - CVR Services, LLC | 512 | — | 1 |
| AS397555US | TGNA-KWES - TEGNA Inc. | 512 | — | 2 |
| AS400732US | RIVERNET - RiverNet, LLC | 512 | 4.1K | 3 |
| AS62021US | LATISYS-DENVER Zayo Group, LLC | 512 | — | 2 |
| AS401896US | MISIU-USA - MISIU LLC | 512 | 257 | 4 |
| AS54765US | MANAGEMENT-INVESTMENT-CORPORATION - Management Investment Corporation | 512 | — | 1 |
| AS22337US | DTBNET - DVS Solutions | 512 | — | 1 |
| AS62974US | OOCL-SLC - OOCL (USA) Inc. | 512 | — | 2 |
| AS398374US | NSL-ASN - Pro-Mark, LLC | 512 | — | 2 |
| AS395715US | COMSOL - Communication Sales & consulting, LLC | 512 | — | 1 |
| AS40263US | BCS-1 - Bear Cloud Solutions, Inc. | 512 | 1 | 3 |
| AS26276US | TIMKEN-USA - The Timken Company | 512 | — | 2 |
| AS40656US | COMETC1 - Communications Etc., Inc. | 512 | 65.5K | 3 |
| AS33088US | COMPSYCH-AS - COMPSYCH EMPLOYEE ASSISTANCE PROGRAMS, INC. | 512 | — | 2 |
| AS55084US | DRMC-AS-1 - DuBois Regional Medical Center | 512 | — | 1 |
| AS398076US | OVERTURE-LIFE - Overture Life, Inc. | 512 | 11 | 12 |
| AS397600US | BANKOZK-DALLAS - Bank OZK | 512 | — | 2 |
| AS400452US | UC-DAVIS-HEALTH - University of California Davis Medical Center | 512 | — | 2 |
| AS54429US | LOCAL-CONNECTIVITY-LAB - Local Connectivity Lab | 512 | 20 | 7 |
| AS11428US | BEAM-GLOBAL - Jim Beam Brands Co. | 512 | — | 2 |
| AS16680US | IRONBOW - Iron Bow Technologies, LLC | 512 | — | 2 |
| AS395057US | CAREOREGON - CareOregon | 512 | — | 2 |
| AS36765US | WLKY-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS400774US | NATURALWIRELESS - Natural Wireless, LLC | 512 | — | 1 |
| AS406US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 512 | — | 2 |
| AS64257US | TXGL1 - trueEX LLC | 512 | — | 2 |
| AS15266US | THE-TEAM-COMPANIES - Cast & Crew LLC | 512 | — | 2 |
| AS1445US | MILLIMAN - Milliman, Inc. | 512 | — | 1 |
| AS16647US | PERIMETERWATCH - Perimeterwatch Technologies, INC | 512 | — | 2 |
| AS17317US | THING5-NA - Thing5, LLC | 512 | — | 2 |
| AS22542US | GRAEBEL - GRAEB | 512 | — | 2 |
| AS54247US | BATTERY-MANAGEMENT - Battery Ventures | 512 | — | 2 |
| AS394575US | AFS-IEP - Accenture Federal Services LLC | 512 | — | 2 |
| AS399392US | FIREDOG-AS399392 - FIRE DOG SSC, LLC | 512 | 4.1K | 3 |
| AS4985US | PGWORKS - PHILADELPHIA GAS WORKS | 512 | — | 2 |
| AS33347US | NAVICENT - NAVICENT HEALTH | 512 | — | 2 |
| AS26109US | L-PERRIGO-GLOBAL - L. Perrigo Company | 512 | — | 1 |
| AS23218US | TMC - Texas Medical Center | 512 | — | 2 |
| AS14045US | CHANGEHEALTHCARE - UnitedHealth Group Incorporated | 512 | — | 2 |
| AS54018US | EG-USWEST - EXPEDIA, INC | 512 | — | 2 |
| AS11294US | SHUTTERFLY-LLC - Shutterfly, LLC | 512 | — | 1 |
| AS397365US | AS190901 - Blade Broadband | 512 | — | 1 |
| AS396939US | AANIIN - Fond du Lac Band of Lake Superior Chippewa | 512 | — | 1 |
| AS55078US | DIVING-BELL - DIVING BELL DEV LLC | 512 | 4.1K | 3 |
| AS206625US | EHI-AME-AS Enterprise Holdings, Inc. | 512 | — | 1 |
| AS46587US | 2991400 - Cerberus Capital Management LP | 512 | — | 2 |