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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| 512 |
| — |
| 2 |
| AS398480US | RBH - Robinson Bradshaw | 512 | — | 2 |
| AS13472US | MATRIX-CCHN - Matrix Medical Network | 512 | — | 2 |
| AS25762US | BOCUSA - Bank of China | 512 | — | 2 |
| AS1438US | PIONEER-STATE-MUTUAL-INSURANCE - PIONEER STATE MUTUAL INSURANCE CO. | 512 | — | 2 |
| AS398459US | ROGUECU-ORG-01 - Rogue Credit Union | 512 | — | 2 |
| AS400314US | GULF-WINDS-1 - Gulf Winds Credit Union | 512 | — | 2 |
| AS2021US | UNISYS-INT - Unisys Corporation | 512 | — | 2 |
| AS136806US | TII-AS-IN - Texas Instruments, Inc | 512 | — | 2 |
| AS32949US | UNITED-REFRIGERATION - UNITED REFRIGERATION INC | 512 | — | 2 |
| AS36358US | CDM-AS - City of Des Moines | 512 | — | 1 |
| AS393546US | ARUP - ARUP LABORATORIES | 512 | — | 1 |
| AS54743US | AS-TAGUCHI - Taguchi Networks LLC | 512 | — | 2 |
| AS13969US | PMM-INC-AS - PROFESSIONAL MEDICAL MANAGEMENT, INC. | 512 | — | 2 |
| AS22451US | HRH - Halifax Regional Hospital | 512 | — | 2 |
| AS15285US | SRLCD - Cash Depot | 512 | — | 2 |
| AS396291US | NCH-HEALTHCARE-SYSTEM - NCH Healthcare System, Inc. | 512 | — | 2 |
| AS398000US | TGNA-WTIC - TEGNA Inc. | 512 | — | 2 |
| AS62740US | TBKBANK - TBK Bank, SSB | 512 | — | 2 |
| AS26992US | UHG-CIMPLIFY - CIMplify | 512 | — | 2 |
| AS32973US | BCL-ASN - Bracebridge Capital, LLC | 512 | — | 2 |
| AS30484US | PAHOUSEGOP - Pennsylvania House of Representatives, Republican IT Services | 512 | — | 2 |
| AS36376US | AS-CHENIERE - Cheniere Energy, Inc. | 512 | — | 2 |
| AS36796US | WCNX - Waste Connections Inc. | 512 | — | 2 |
| AS401293US | AS401293 - FSTcloud | 512 | 6.8M | 15 |
| AS36674US | ULINE - Uline | 512 | — | 2 |
| AS401460US | METROPLUS-HEALTH - METROPLUS HEALTH PLAN, INC. | 512 | — | 2 |
| AS22916US | PHS-CA - Providence Health & Services | 512 | — | 2 |
| AS11364US | VAREX-USA - Varex Imaging Corporation | 512 | — | 2 |
| AS402151US | INFINIT-01 - Infinite Portal LLC | 512 | — | 1 |
| AS393853US | ICS - Digital Network Access Communications, INC | 512 | — | 1 |
| AS63371US | 63371 - Lubrizol Additives | 512 | — | 2 |
| AS396083US | ARVUS-160-84 - Framatome Inc. | 512 | — | 2 |
| AS397887US | HOSTMYCALLS-01 - HostMyCalls | 512 | — | 2 |
| AS17167US | MCSNOC01 - Microchip Computer Solutions, Inc. | 512 | — | 2 |
| AS32309US | 32309 - ASHS | 512 | — | 2 |
| AS54853US | MTL-371-54853 - Impact Internet | 512 | 65.5K | 3 |
| AS40288US | CFCU-AS - CONGRESSIONAL FEDERAL CREDIT UNION | 512 | — | 2 |
| AS46192US | SWBC-ASN - SWBC | 512 | — | 2 |
| AS397012US | OXYAHGC-01 - oXya Corporation | 512 | — | 1 |
| AS36102US | PFS - State Street Bank and Trust Company | 512 | — | 2 |
| AS397741US | CITYOFDUBUQUE-01 - City Of Dubuque | 512 | — | 2 |
| AS396875US | CCINC - Consumer Cellular Inc. | 512 | — | 2 |
| AS396089US | NEXCUS - NEXCUS TECHNOLOGIES LLC | 512 | — | 2 |
| AS393296US | AUGUSTANACOLLEGEROCKISLANDIL - Augustana College | 512 | — | 1 |
| AS205781US | HostZen HostZen LLC | 512 | — | 2 |
| AS18533US | AAAWA-3605 - AAA Washington | 512 | — | 1 |