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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,162 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,670 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,950 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| 256 |
| — |
| 1 |
| AS151980US | EAAPPL-AS-AP - Electronic Arts Inc. | 256 | — | 1 |
| AS402414US | NWCUD-ASN-01 - Northwest | 256 | 65.5K | 2 |
| AS27592US | RPI-BGP - Reliable Parts Inc. | 256 | — | 1 |
| AS54962US | MITCHELL-INTERNATIONAL - Mitchell International | 256 | — | 1 |
| AS30054US | THE-COLLEGE-OF-WESTCHESTER - The College of Westchester | 256 | — | 1 |
| AS23087US | CDG - Communications Data Group | 256 | — | 1 |
| AS393828US | EA-MADISON - Electronic Arts, Inc. | 256 | — | 1 |
| AS398874US | LOSTCREEKTECHASN-01 - Lost Creek Technology L.L.C. | 256 | 4.1K | 2 |
| AS402164US | ROFAEL-01 - Rofael Aleezada, Sole Proprietorship | 256 | 1 | 2 |
| AS394295US | MOLNII - Federal Hill Solutions | 256 | — | 1 |
| AS40227US | IPNS-LAB - IP Networked Services Inc. | 256 | — | 1 |
| AS53515US | AMTELCO-204-27-231-AS - AMTELCO | 256 | — | 1 |
| AS398243US | HE-US-01 - Holmes Electric Inc. | 256 | — | 1 |
| AS398410US | VIRTUWORKS - Virtuworks | 256 | — | 1 |
| AS394060US | SEABOARDCORP - SEABOARD CORPORATION | 256 | — | 1 |
| AS401357US | SOLID-ROCK-NETWORK - Solid Rock Network LLC | 256 | 256 | 2 |
| AS396117US | OCFA-IRV - Orange County Fire Authority | 256 | — | 1 |
| AS402003US | EZGAMEHOST-NET-1 - EZ Game Host, LLC | 256 | 256 | 2 |
| AS397460US | BEAUFORT-COUNTY-SC-01 - Beaufort County Government | 256 | — | 1 |
| AS397314US | WPMALONE - Allcare Pharmacy | 256 | — | 1 |
| AS25811US | DODI-01 - Diamond Offshore, LLC | 256 | — | 1 |
| AS63078US | ADS-AS1 - A. Duda & Sons, Inc. | 256 | — | 1 |
| AS53357US | DCSD - Douglas County School District RE.1 | 256 | — | 1 |
| AS936US | WEICH-ASN-01 - Weichert Co | 256 | — | 1 |
| AS400890US | AMTECH-BUSINESS - AMTECH BUSINESS SOLUTIONS. | 256 | — | 1 |
| AS397734US | RAD-ROANOKE - Radford University | 256 | — | 1 |
| AS30262US | PTT-AS - High 5 Games, LLC | 256 | — | 1 |
| AS32379US | SOUTHERN-GRAPHIC-SYSTEMS-INC - Southern Graphic Systems, LLC | 256 | — | 1 |
| AS54506US | STAYPINEAPPLE - Pineapple Hospitality Company | 256 | — | 1 |
| AS18544US | NKTR-AS01 - Nektar Therapeutics | 256 | — | 1 |
| AS393482US | SMCISD-ASN - San Marcos Consolidated Independent School District | 256 | — | 1 |
| AS62896US | MIDCO-NET-INV-MR - Midcontinent Communications | 256 | 48 | 4 |
| AS393378US | SACFCU-P7148 - Cobalt Credit Union | 256 | — | 1 |
| AS211585US | MAIYUN Maiyun Zhang | 256 | 19 | 5 |
| AS397927US | GPB-HQ-01 - Georgia Public Broadcasting | 256 | — | 1 |
| AS54545US | WINCO-FOODS - Winco Foods LLC | 256 | — | 1 |
| AS11913US | ELEVATE-HOMESCRIPTIONS-01 - Elevate Homescriptions | 256 | 16 | 2 |
| AS395644US | RGI - The Root Group, Inc. | 256 | — | 1 |
| AS17016US | EIS-NET - Elevation Improvement Systems, LLC | 256 | — | 1 |
| AS22712US | POSHY1 - POSHMARK Inc. | 256 | — | 1 |
| AS11267US | PEIRCE-PHELPS - Peirce-Phelps, Inc. | 256 | — | 1 |
| AS46697US | ACNR-01 - American Consolidated Natural Resources, Inc. | 256 | — | 1 |
| AS395465US | APOG-UNCC-SOUTH - Apogee Telecom Inc. | 256 | — | 1 |
| AS208462US | BISUP COSMIC STORE LLC | 256 | — | 1 |
| AS213124US | zylinktech-net zylinktech LLC | 256 | 86K | 9 |
| AS398195US | BARSTOOL-SPORTS - Barstool Sports, Inc. | 256 | — | 1 |