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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,171 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,368 |
| 512 |
| — |
| 2 |
| AS395132US | MWCU - Meriwest Credit Union | 512 | — | 2 |
| AS46137US | AAA-MWG-IO - AAA-Arizona, Inc. | 512 | — | 2 |
| AS398883US | WINGMAN-IT-SERVICES - Wingman IT Services | 512 | 16 | 3 |
| AS399553US | HB-MAIN-ASN - Trustmark Health Benefits | 512 | — | 2 |
| AS398374US | NSL-ASN - Pro-Mark, LLC | 512 | — | 2 |
| AS53482US | MKMG - CareMount Medical, P.C. | 512 | — | 2 |
| AS18937US | NMC - National Monitoring Center | 512 | — | 2 |
| AS396254US | ALARIS-1 - Kodak Alaris | 512 | — | 2 |
| AS33088US | COMPSYCH-AS - COMPSYCH EMPLOYEE ASSISTANCE PROGRAMS, INC. | 512 | — | 2 |
| AS395078US | MHALINK-01 - Massachusetts Health & Hospital Association, Inc. | 512 | — | 2 |
| AS394950US | COLLECTIVE-HEALTH - CollectiveHealth, Inc. | 512 | — | 2 |
| AS46655US | ALIGN-NYC - ALIGN Inc. | 512 | — | 2 |
| AS398847US | GTE-FINANCIAL01 - GTE Financial | 512 | — | 2 |
| AS396534US | DEEPSYS - Deep Systems LLC | 512 | — | 2 |
| AS36366US | LOGIXCOMM-AS5 - Logix | 512 | — | 2 |
| AS55182US | TCB-NA - Texas Capital Bank, N.A. | 512 | — | 2 |
| AS399809US | LAER-AS-FRA1 - UnitedLayer, LLC | 512 | 1 | 3 |
| AS54765US | MANAGEMENT-INVESTMENT-CORPORATION - Management Investment Corporation | 512 | — | 1 |
| AS47039US | NGLI-11-47039 - National Guardian Life Insurance Company | 512 | — | 2 |
| AS36214US | GENERAL-INFORMATICS - General Informatics, LLC | 512 | — | 2 |
| AS36217US | IRONPATH - NetActuate, Inc | 512 | 1 | 3 |
| AS40879US | LOS-ALAMOS-COUNTY - Incorporated County of Los Alamos | 512 | — | 2 |
| AS11449US | INTERACTIVEBROKERS - Interactive Brokers LLC | 512 | — | 2 |
| AS401729US | CS-ASN1 - CrossSignal, LLC | 512 | — | 2 |
| AS36571US | WLWT-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS40352US | RH-UNK - Rapid Hacks LLC | 512 | — | 2 |
| AS14718US | LENEXA-DR - NATIONAL INDEMNITY COMPANY | 512 | — | 1 |
| AS393878US | EPIC-HOSTING-2 - Epic Hosting, LLC | 512 | — | 1 |
| AS400470US | REMC10-ASN - Tuscola Intermediate School District | 512 | — | 2 |
| AS36589US | BNCBASHQBRNJ - BARNES & NOBLE COLLEGE BOOKSELLERS | 512 | — | 2 |
| AS23209US | VHDA20011260123220 - Virginia Housing Development Authority | 512 | — | 2 |
| AS16909US | IMPUT - imput | 512 | 6 | 8 |
| AS62691US | ACA-ISG - AMERICAN CREDIT ACCEPTANCE | 512 | — | 2 |
| AS32805US | O365-ENABLEMENT - Securitas Security Services USA, Inc | 512 | — | 2 |
| AS397302US | NEDERLANDER-WEST-COAST - J. Ned, Inc. | 512 | — | 2 |
| AS1609US | GISX - Global Imaging Systems Inc | 512 | — | 2 |
| AS62021US | LATISYS-DENVER Zayo Group, LLC | 512 | — | 2 |
| AS63310US | AS-NABP - NABP | 512 | — | 1 |
| AS1019US | SOTERAHEALTH - Sotera Health | 512 | — | 2 |
| AS23045US | ASKOH1 - Kohler Co. | 512 | — | 2 |
| AS395007US | ROCKETCOMM - Rocket Communications Corp. | 512 | — | 2 |
| AS398407US | INTELIUM-1 - Intelium Corp. | 512 | — | 2 |
| AS401164US | EPS - Elizabeth Board of Education | 512 | 514 | 6 |
| AS27279US | ASCENSION-MDBAL - Ascension Technologies | 512 | — | 2 |
| AS54185US | PRMI-CORP-AS01 - PRIMARY RESIDENTIAL MORTGAGE | 512 | — | 2 |
| AS46173US | OMNIS-2 - Omnis Network, LLC | 512 | 2 | 4 |