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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 | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| 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 | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 256 |
| 256 |
| 2 |
| AS11715US | KISARA-NETWORK-02 - Kisara Development LLC | 256 | 2 | 3 |
| AS40083US | CENT-SQR-INTERNET - American Traffic Solutions, Inc | 256 | — | 1 |
| AS398131US | LUCASFILM-LA - Lucasfilm Ltd. LLC | 256 | — | 1 |
| AS29936US | THD-TMC-8750 - Telluride Medical Center | 256 | — | 1 |
| AS393984US | CANOPY-PARTNERS - Canopy Partners, LLC | 256 | — | 1 |
| AS13963US | SKYVIEWSAT - Skyview Networks | 256 | — | 1 |
| AS16878US | FOUNDERS - Utica Mutual Insurance Company | 256 | — | 1 |
| AS11891US | COSL-ASN-01 - City of San Leandro | 256 | — | 1 |
| AS393841US | EPIC-HOSTING-1 - Epic Hosting, LLC | 256 | — | 1 |
| AS54767US | RESTO-HARDWARE - Restoration Hardware, Inc. | 256 | — | 1 |
| AS16982US | CANONMI-ASN-MN - Canon Medical Informatics, Inc. | 256 | — | 1 |
| AS40199US | STELLAR INNOVATORS ALLIANCE - STELLAR INNOVATORS ALLIANCE LLC | 256 | 256 | 2 |
| AS914US | MXAK-JNU-AK - MXAK | 256 | — | 1 |
| AS397491US | AS-WF-01 - Wichita Falls ISD | 256 | — | 1 |
| AS40541US | CCS-ASN - Central Credit Services Inc | 256 | — | 1 |
| AS396491US | QUALTIM - Qualtim Inc. | 256 | — | 1 |
| AS17286US | PCRMC-ROLLA - Phelps County Regional Medical Center | 256 | — | 1 |
| AS396288US | COMPUNETINC - Compunet, Inc. | 256 | 1 | 2 |
| AS22779US | JERICH-EU - Jerich USA Inc. | 256 | — | 1 |
| AS22231US | CITY-OF-CARMEL-INDIANA - City of Carmel | 256 | — | 1 |
| AS397926US | CCC-HOSTING-01 - Crystal Computer Consulting, Inc. | 256 | — | 1 |
| AS394782US | SEAPORT - Commonwealth Flats Development Hotel Corp. | 256 | — | 1 |
| AS398405US | MMH-BGP-01 - Montrose Memorial Hospital | 256 | — | 1 |
| AS11132US | ASMSA-AS - ARKANSAS SCHOOL FOR MATHEMATICS, SCIENCES & THE ARTS | 256 | — | 1 |
| AS393633US | PRMC-ASN1 - Pratt Regional Medical Center | 256 | — | 1 |
| AS214022US | VIRTNET Joseph Rawlings trading as Virtnet.bond | 256 | 263 | 6 |
| AS40017US | PPD-RESEARCH-TRIANGLE-PARK-NC - PPDI | 256 | — | 1 |
| AS17080US | CHUUNILAB-01 - Chuunilab Corp. | 256 | 1 | 2 |
| AS46651US | OMD3 - Optimized Micro Devices LLC | 256 | — | 1 |
| AS398304US | THE-IT-GUY - The IT Guy | 256 | — | 1 |
| AS26849US | AGFIRST-FARM-CREDIT-BANK - AgFirst Farm Credit Bank | 256 | — | 1 |
| AS398438US | MGCCC - Mississippi Gulf Coast Community College | 256 | — | 1 |
| AS25622US | TSYS-SDC-CONTACT-CENTER-WFH - Global Payments Inc. | 256 | — | 1 |
| AS10545US | LCOL - University of Lynchburg | 256 | — | 1 |
| AS395651US | TAHOEIX - Tahoe Internet Exchange (TahoeIX) | 256 | 1 | 2 |
| AS63038US | DELIBRARY - Delaware Division of Libraries, State of Delaware | 256 | — | 1 |
| AS19525US | 3E-COMPANY - 3E COMPANY ENVIRONMENTAL, ECOLOGICAL AND ENGINEERING | 256 | — | 1 |
| AS26066US | NVUSD - Napa Valley Unified School District | 256 | — | 1 |
| AS19769US | COF-KDC - Capital One Financial Corporation | 256 | — | 1 |
| AS26786US | BETANXT-1 - BetaNXT, Inc. | 256 | — | 1 |
| AS400483US | APOG-VISTA-DEL-CAMPO - Apogee Telecom Inc. | 256 | — | 1 |
| AS394523US | HILLNET - The Hill School | 256 | — | 1 |
| AS54493US | ASPEN-VALLEY-HOSPITAL - Aspen Valley Hospital | 256 | — | 1 |
| AS401874US | CRM-080 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS402067US | NACC-46-AS - NorthWest Arkansas Community College | 256 | — | 1 |
| AS22618US | GWK-LLC - Gannett Welsh & Kotler LLC | 256 | — | 1 |