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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,129 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,664 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,947 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,375 |
| 768 |
| — |
| 2 |
| AS54690US | CLU - California Lutheran University | 768 | — | 3 |
| AS25906US | IVGNCB - Life Technologies Corp. | 768 | — | 3 |
| AS26808US | UTICA-COLLEGE - Utica University | 768 | — | 3 |
| AS19868US | AS-UL-LV - UnitedLayer, LLC | 768 | — | 3 |
| AS25855US | ETS-TELCO - ETS TELECOM | 768 | — | 2 |
| AS18254US | KLAY-AS-AP - KLAYER LLC | 768 | — | 2 |
| AS32834US | CHILDRENS-MEDICAL-CENTER - Children's Medical Center of Dallas | 768 | — | 3 |
| AS398960US | CRYOFLESH - Cryoflesh Inc | 768 | 2 | 5 |
| AS40057US | GAAQUA - Georgia Aquarium, INC. | 768 | — | 3 |
| AS26096US | LODDEN - Lodden Services | 768 | — | 3 |
| AS26168US | EXCO-ASN-01 - EXCO Resources, Inc. | 768 | — | 3 |
| AS19853US | ORANGEHOST - OrangeHost | 768 | — | 3 |
| AS18891US | CONFLUENCE - Confluence Technologies | 768 | — | 3 |
| AS14056US | SEI - SEI Investments | 768 | — | 3 |
| AS46178US | IVIT-1 - Integrity Virtual IT, Inc. | 768 | — | 2 |
| AS14729US | THRIVE-SE1 - Thrive Operations, LLC | 768 | — | 2 |
| AS53636US | XERIO - Xerio | 768 | — | 3 |
| AS53621US | RADY-CHILDRENS-HOSPITAL-SAN-DIEGO - Rady Children's Hospital - San Diego | 768 | — | 3 |
| AS1635US | WSC-READING - Weidenhammer | 768 | — | 2 |
| AS25992US | LVMPD - Las Vegas Metropolitan Police Department | 768 | — | 3 |
| AS22839US | MIMOWORKS-01 - Mimoworks Internet LLC | 768 | 256 | 3 |
| AS400773US | BOSTON-FIBER - Boston Fiber LLC | 768 | 1 | 5 |
| AS36737US | CONFI-AS - PeopleFinders | 768 | — | 3 |
| AS27543US | ELLIOTTMGMT - Elliott Associates | 768 | — | 3 |
| AS11954US | BAYVIEW-FINANCIAL-INETOPS - Bayview Financial, LP | 768 | — | 3 |
| AS46550US | LOGICORP - Logitech Inc | 768 | 16 | 3 |
| AS46354US | QUANTHOUSE-US - QuantHouse Inc | 768 | — | 3 |
| AS25909US | STEVE-MADDEN - Steven Madden, LTD. | 768 | — | 3 |
| AS36478US | ALLIANTCU - Alliant Credit Union | 768 | — | 3 |
| AS400725US | ZEPHYR-MONITORS-LLC - Zephyr Monitors LLC | 768 | 65.5K | 4 |
| AS399055US | SOUTHEAST-NETWORKS - Southeast Networks | 768 | 65.5K | 3 |
| AS20020US | POWERNET - Power Systems Computers | 768 | — | 2 |
| AS78US | BA-346-78 - BT Americas, Inc | 768 | — | 3 |
| AS393577US | TRITAN-DEVELOPMENT - Tritan Development | 768 | 8.2K | 11 |
| AS402425US | QLL-AS-001 - QOREXA | 768 | — | 3 |
| AS32203US | TLC-126-32203 - Thornton Labs Inc. | 768 | — | 3 |
| AS14509US | AS14509 - AMC | 768 | — | 3 |
| AS10379US | DELUXE - Deluxe Corporation | 768 | — | 3 |
| AS397721US | APOG-UNO - Apogee Telecom Inc. | 768 | — | 2 |
| AS63116US | BAKER-DONELSON - Baker, Donelson, Bearman, Caldwell & Berkowitz, PC | 768 | — | 3 |
| AS32268US | ARTISAN-PARTNERS-ASN - Artisan Partners Limited Partnership | 768 | — | 3 |
| AS54226US | SUNY-OPTOMETRY - SUNY College of Optometry | 768 | — | 3 |
| AS4892US | APPLIEDUK-CLOUD-04 - APPLIED SYSTEMS, INC | 768 | — | 3 |
| AS10966US | ALASKA-AIR - Alaska Airlines, Inc. | 768 | — | 3 |
| AS16652US | RISEUP - Riseup Networks | 768 | 1 | 4 |
| AS20282US | NYFIX20282 - Broadridge Trading and Connectivity Solutions Inc. | 768 | — | 3 |