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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-RAS-01247 - United States Department of Defense (DoD) |
| — |
| — |
| 0 |
| AS758US | MERIT-AS-24 - Merit Network Inc. | — | — | 0 |
| AS716US | DNIC-AS-00716 - Headquarters, USAISC | — | — | 0 |
| AS4127US | DUPONT-SCD - DuPont Scientific Computing | — | — | 0 |
| AS26973US | ASCOLBECK - Colbeck Capital Management, LLC | — | — | 0 |
| AS4337US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4087US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS25666US | DIGINODUS - Diginodus | — | — | 0 |
| AS4905US | INFO2-4905 - Info 2 Extreme, Inc. | — | — | 0 |
| AS4491US | MULTIPRO - MultiNet, LLP | — | — | 0 |
| AS4482US | CMS-AS3 - Air Force Systems Networking | — | — | 0 |
| AS3355US | LITC - Lockheed Martin Corporation | — | — | 0 |
| AS36104US | EFCU - ENT FEDERAL CREDIT UNION | — | — | 0 |
| AS40483US | SUPERIOR-ENERGY-SERVICES - Superior Energy Services, Inc | — | — | 0 |
| AS33406US | GLYNN-COUNTY-SCHOOLS - GLYNN COUNTY SCHOOLS | — | — | 0 |
| AS33404US | CBOE - Cboe | — | — | 0 |
| AS32919US | ISP-PROMESA - Promesa Enterprises Inc. | — | — | 0 |
| AS33021US | PBVUSD - Panama-Buena Vista Union School District | — | — | 0 |
| AS36123US | VINS-AS-4 - Flexential Colorado Corp. | — | — | 0 |
| AS36627US | AROOT - VeriSign Global Registry Services | — | — | 0 |
| AS18774US | ARIN-US-ASN-1 - Boerboel LLC | — | — | 0 |
| AS33220US | OB-AS-EU - Bloomberg Financial Markets Limited Partnership | — | — | 0 |
| AS33747US | CHARTER-33747-NA - Charter Communications LLC | — | — | 0 |
| AS16845US | KCI-ASN - Khera Communications, Inc. | — | — | 0 |
| AS16804US | ARCDIGITALNET - Arcdigital LLC | — | — | 0 |
| AS16893US | TZOO - Travelzoo Inc. | — | — | 0 |
| AS16690US | ANADARKO - Occidental Petroleum Corporation | — | — | 0 |
| AS16675US | CLEARDATA - Clear DATA Networks Inc. | — | — | 0 |
| AS17347US | PEPCO - Potomac Electric Power Company | — | — | 0 |
| AS18989US | LIFELOCK-1 - Gen Digital Inc. | — | — | 0 |
| AS36257US | CHEGG-AS - Chegg, Inc. | — | — | 0 |
| AS27540US | VELO-SANTAFE - Zayo Bandwidth | — | — | 0 |
| AS26979US | IVANTI-SJ - Ivanti, Inc. | — | — | 0 |
| AS26771US | ICD - Institutional Cash Distributors Technology, LLC | — | — | 0 |
| AS26755US | ACALANES-UNION-HIGH-SCHOOL-DISTRICT - Acalanes Union High School District | — | — | 0 |
| AS27612US | CORER-3 - Core-Route | — | — | 0 |
| AS29742US | DDS-BUR - Deluxe Digital Studios, Inc. | — | — | 0 |
| AS32690US | CAES SYSTEMS LLC - CAES Systems LLC | — | — | 0 |
| AS27516US | ENABLESIT - Vital I/O, Inc. | — | — | 0 |
| AS33079US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS40353US | LUNEXGROUP - Lunex Group Inc | — | — | 0 |
| AS40404US | CREDIGY - CREDIGY SOLUTIONS INC. | — | — | 0 |
| AS40081US | HEXIUM-HOSTING-AS1 - Hexium Hosting, LLC | — | — | 0 |
| AS46462US | KELE-AS - Kele, Inc | — | — | 0 |
| AS40709US | NO - City of Bend | — | — | 0 |
| AS46230US | DUDROP - Dignitas Technology Inc | — | — | 0 |
| AS46180US | KWIKOM-BBWI - KwiKom Communications | — | — | 0 |