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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. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,202 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| 1 |
| 2 |
| AS199770US | IQ-NET IQNET COMMUNICATIONS LLC | 256 | — | 1 |
| AS40658US | USM-OK1 - US Monitoring, Inc. | 256 | — | 1 |
| AS395277US | ST-LUKES-HOSPITAL - Aspirus, Inc. | 256 | — | 1 |
| AS56640US | BAIN-AND-COMPANY-INC-UNITED-KINGDOM BAIN AND COMPANY INC UNITED KINGDOM | 256 | — | 1 |
| AS402818US | VENICE-NET-1 - Venice.ai | 256 | — | 1 |
| AS396322US | PC-ASN - Peace Corps | 256 | 516 | 7 |
| AS397120US | CHEMUNGCONY - Chemung County, New York | 256 | — | 1 |
| AS401928US | DFTC - DFTC | 256 | 256 | 2 |
| AS54556US | MCCALLIE-SCHOOL - McCallie School | 256 | — | 1 |
| AS394637US | LIGHTCHANGE - LightChange Technologies | 256 | 1 | 2 |
| AS400002US | LIFENET-INC - LifeNet, Inc. | 256 | — | 1 |
| AS397054US | ELUVIO - Eluvio, Inc | 256 | 1 | 2 |
| AS30053US | DUQUESNE-CAPITAL-MANAGEMENT-LLC - DUQUESNE CAPITAL MANAGEMENT LLC | 256 | — | 1 |
| AS18445US | POLYONE-CORPORATION - PolyOne Corporation | 256 | — | 1 |
| AS35880US | WFC-CISD-INET - Wakefern Food Corp. | 256 | — | 1 |
| AS401770US | OMNIVERY-US - Omnivery | 256 | — | 1 |
| AS393452US | FSST - Flandreau Santee Sioux Tribe | 256 | — | 1 |
| AS400865US | TRICKSOLUTIONS - Trick Solutions | 256 | 256 | 2 |
| AS402074US | SOFTIRON-ASN-RIC - SoftIron | 256 | 1 | 2 |
| AS7816US | CTC - Concurrent Technologies Corporation | 256 | — | 1 |
| AS402464US | CNET-PR-01 - Curetopia | 256 | — | 1 |
| AS206142US | InternetTV Internet TV, Inc. | 256 | — | 1 |
| AS26510US | FTCH-HQ-ASN - Fishbeck, Thompson, Carr & Huber, Inc. | 256 | — | 1 |
| AS26519US | ACE-002 - Ace Data Centers II, L.L.C. | 256 | — | 1 |
| AS401264US | UACCM-AS - University of Arkansas Community College at Morrilton | 256 | 256 | 2 |
| AS402702US | JASON - Highlander | 256 | — | 1 |
| AS399796US | BERNINA - Bernina of America, LLC | 256 | — | 1 |
| AS31947US | SWANSON-HEALTH - Swanson Health Products Inc. | 256 | — | 1 |
| AS1617US | JLEM - Jacobs Levy Equity Management, Inc. | 256 | 1 | 2 |
| AS22580US | GUARD - GUARD INSURANCE GROUP | 256 | — | 1 |
| AS15012US | TRIOLAB - NextStage Innovations LLC | 256 | — | 1 |
| AS29931US | ACE-002 - Ace Data Centers II, L.L.C. | 256 | — | 1 |
| AS16834US | WEBSTER-BANK - Webster Bank, National Association | 256 | — | 1 |
| AS395905US | SANDRIDGE - Sandridge Food Corporation | 256 | — | 1 |
| AS13827US | WASHPOST - Washington Post | 256 | — | 1 |
| AS63077US | CMV-1 - ConnectMe, LLC. | 256 | — | 1 |
| AS63464US | SUNSASN - THE PHOENIX SUNS | 256 | — | 1 |
| AS394238US | GCFA-ASN01 - GENERAL COUNCIL ON FINANCE AND ADMINISTRATION OF THE UNITED METHODIST CHURCH | 256 | — | 1 |
| AS402026US | AVIRM-SYSTEMS-INC - Avirm Systems, Inc. | 256 | — | 1 |
| AS397510US | CPI - Consumers Power, Inc. | 256 | — | 1 |
| AS400904US | KEY-MANAGEMENT - Key Investment | 256 | — | 1 |
| AS397587US | DATAXPORT-ELP - DataXport.Net, LLC | 256 | — | 1 |
| AS36270US | STERLING-TRADING-TECH-NY - STT Acquisition Intermediate Holdco, Inc. | 256 | — | 1 |
| AS397891US | COLUMBUSHOSP-AS-01 - Columbus Community Hospital, Inc. | 256 | — | 1 |
| AS10701US | TNSC - Fiber Plus, Inc | 256 | — | 1 |
| AS15235US | OMC-COGENT - The Old Mountain Company Inc. | 256 | 1 | 2 |