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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 |
| AS32721US | WESBANCO - WesBanco Bank, Inc. | 256 | — | 1 |
| AS22455US | ESL-FCU - ESL Federal Credit Union | 256 | — | 1 |
| AS1075US | AS-WITC-01 - Wiseinfotec.net LLC | 256 | — | 1 |
| AS53931US | TALQ-NET-01 - Talquin Electric Coop, Inc | 256 | — | 1 |
| AS16998US | ZEUSINC-AS - Zeus Industrial Products, Inc. | 256 | — | 1 |
| AS33435US | CITYOFSPRINGFIELDMA - City of Springfield, Massachusetts | 256 | — | 1 |
| AS398409US | ESPVA - EyeCare Services Partners Management LLC | 256 | — | 1 |
| AS63146US | WC-28 - Wolf Creek Nuclear Operating Corporation | 256 | — | 1 |
| AS54550US | MSI7500 - M S International, Inc. | 256 | — | 1 |
| AS11088US | ICONNECT - iConnect | 256 | — | 1 |
| AS33572US | ELECTRONIC-ARTS-LOS-ANGELES - Electronic Arts, Inc. | 256 | — | 1 |
| AS12011US | TSD-AS-01 - Thompson School District | 256 | — | 1 |
| AS400490US | TWO-BIT-HACKS - Two Bit Hacks, LLC | 256 | 1 | 2 |
| AS395027US | AGT-US-5800 - Ainsworth Game Technology, Inc. | 256 | — | 1 |
| AS36582US | EVMAGDIA-LT-CL - Magnetar Capital LLC | 256 | 1 | 2 |
| AS16867US | BANDWIDTH-CORP - Bandwidth Inc. | 256 | 256 | 2 |
| AS27490US | AGRACEHOSPICE-MSN-DR - Agrace Hospicecare Inc | 256 | — | 1 |
| AS33709US | TENG-YUE-01 - Teng Yue Partners, LP | 256 | — | 1 |
| AS400407US | TRONOX-LLC - TRONOX LLC | 256 | — | 1 |
| AS399927US | IMOUNTAIN-ASN1 - IMountain LLC | 256 | — | 1 |
| AS26257US | WASHINGTON-COUNTY-OF-PA - County Of Washington | 256 | — | 1 |
| AS401547US | HCDL-BUFFALO-DATA-CENTER - H5 Data Centers | 256 | 256 | 2 |
| AS59662US | DOCUS-EMEA-PROD DocuSign, Inc. | 256 | — | 1 |
| AS32691US | CSC - Corporation Service Company | 256 | — | 1 |
| AS36347US | KYN-GTS-CBO-BOGOTA-CO - Kyndryl | 256 | — | 1 |
| AS40771US | IML - Illinois Mutual Life Insurance Company | 256 | — | 1 |
| AS40691US | CCSBUSINESSSOL - CCS Business Solutions, Inc. | 256 | — | 1 |
| AS16938US | EXCEL-NET-01 - Excelsior College | 256 | — | 1 |
| AS47101US | CITYOFYAKIMA - City of Yakima | 256 | 256 | 2 |
| AS399799US | BOLD-FURMAN - Apogee Telecom Inc. | 256 | — | 1 |
| AS397060US | VIN-01 - Veterinary Information Network, Inc. | 256 | — | 1 |
| AS399737US | ETHERWARE - Etherware Solutions LLC | 256 | — | 1 |
| AS22425US | FL-AS - Finish Line | 256 | — | 1 |
| AS398144US | FOS - Fiserv Solutions, LLC | 256 | — | 1 |
| AS399284US | LUYS - luYs, Inc. | 256 | 18 | 19 |
| AS398055US | MPS-303-AS - Mapleton School District No. 1 in the county of Adams & St. | 256 | — | 1 |
| AS394163US | CLOUD-XPRESS - Cloud Xpress | 256 | — | 1 |
| AS399823US | GGSL - GOIP GLOBALNET SOLUTIONS LLC | 256 | — | 1 |
| AS397051US | 1500-MED-ASSOC-DBQ - Medical Associates Clinic, P.C. | 256 | — | 1 |
| AS47098US | SAMPSON COUNTY SCHOOLS - Sampson County Schools | 256 | — | 1 |
| AS198109US | HCA-AS Horizon Capital Advisors, LLC | 256 | — | 1 |
| AS54857US | TQS-PDX-INTERNET - Qorvo US, Inc | 256 | — | 1 |
| AS399978US | COF-ASN-01 - City of Franklin | 256 | — | 1 |
| AS394768US | LTS-IL01 - Links Technology Solutions, Inc. | 256 | — | 1 |
| AS26945US | AS-AMRI - Curia Global, Inc. | 256 | — | 1 |
| AS400853US | KEYSOURCE-ASNKAL58 - KeySource Acquisition, LLC | 256 | — | 1 |