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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 |
| DADDARIO - D'Addario & Company Inc. |
| 256 |
| — |
| 1 |
| AS395427US | PH-LSK-003 - Parker Hannifin Corporation | 256 | — | 1 |
| AS394287US | FOURPOINT - FourPoint Energy, LLC | 256 | — | 1 |
| AS197137US | YUNHU-NETWORKS-LLC YUNHU NETWORKS LLC | 256 | 4 | 5 |
| AS401045US | KNOXCOGOVT-01 - Knox County Government | 256 | — | 1 |
| AS33103US | OPENMARKET-INC-2 - Infobip | 256 | — | 1 |
| AS395671US | TENABLE-NETWORK-SECURITY-INC - Tenable, Inc. | 256 | — | 1 |
| AS62751US | HSAUWC-AS - HSA-UWC | 256 | — | 1 |
| AS402239US | TECHLOQ-US-02 - Techloq Limited | 256 | 256 | 2 |
| AS401492US | WINDING-RIVERS-LIBRARY-SYSTEM - Winding Rivers Library System | 256 | — | 1 |
| AS393849US | PALOS-GARZA - Palos Garza Forwarding, LLC | 256 | — | 1 |
| AS22826US | CALIPER - Caliper Corporation | 256 | — | 1 |
| AS26964US | INGRAMBARGE-1 - INGRAM BARGE COMPANY | 256 | — | 1 |
| AS398845US | MCC-WACO - McLennan Community College | 256 | — | 1 |
| AS401066US | LOWPING-US - LowPing | 256 | 2 | 3 |
| AS398988US | NIPCO - Northwest Iowa Power Cooperative | 256 | — | 1 |
| AS26741US | CEMC - CarolinaEast Medical Center | 256 | — | 1 |
| AS14096US | FIRSTRATE-ARL-TEXAS-AS - First Rate, Inc. | 256 | — | 1 |
| AS23490US | WESTDEVINC - West Development, INC. | 256 | — | 1 |
| AS393992US | TOWNOFBROOKHAVEN - Town of Brookhaven | 256 | — | 1 |
| AS7850US | TN-ASN-CL - Tarakona Networks, LLC | 256 | — | 1 |
| AS63198US | JCSO-ASN - Jefferson County Sheriff's Office | 256 | — | 1 |
| AS399613US | SMESTADTECH-01 - Smestad Tech LLC | 256 | 3 | 3 |
| AS395412US | VS-MEDIA-IPV4 - VS Media Inc. | 256 | — | 1 |
| AS40505US | APXALARM-ASN - Vivint, Inc | 256 | — | 1 |
| AS29697US | BEEKS-AS - BeeksFX VPS USA Inc. | 256 | — | 1 |
| AS27164US | INTERACTIVE BROKERS CORP - Interactive Brokers Corp | 256 | — | 1 |
| AS18631US | WDL-TECHNOLOGIES - WDL Technologies | 256 | — | 1 |
| AS395627US | CITY-OF-MONTGOMERY-AL - City of Montgomery | 256 | — | 1 |
| AS396886US | BEEKS-CELER-NY4 - BeeksFX VPS USA Inc. | 256 | — | 1 |
| AS394817US | THE-SALVATION-ARMY-USE - The Salvation Army | 256 | — | 1 |
| AS33270US | PMCSAZ - Preferred Medical Claim Solutions | 256 | — | 1 |
| AS7805US | ICD - ICD GROUP, INC. | 256 | — | 1 |
| AS22757US | CITY-OF-AKRON-OHIO - City of Akron | 256 | — | 1 |
| AS394004US | HURLEY-MEDICAL-ASN - Hurley Medical Center | 256 | — | 1 |
| AS13575US | WISCONSINPUBLICPOWER - Wisconsin Public Power, Inc. | 256 | — | 1 |
| AS40657US | OANDA-1 - OANDA Corporation | 256 | — | 1 |
| AS15082US | OMEG-LCN - OMEGAI | 256 | 18 | 4 |
| AS398994US | KHS-USA-11 - KHS USA, Inc. | 256 | — | 1 |
| AS402096US | NTRS-LD5-P1 - The Northern Trust Company | 256 | — | 1 |
| AS33699US | RUSSELL-MARKETING-RESEARCH - Russell Marketing Research, Inc. | 256 | — | 1 |
| AS14784US | STCU - SPOKANE TEACHERS CREDIT UNION | 256 | — | 1 |
| AS40323US | VAFB - Virginia Farm Bureau Mutual Insurance Company | 256 | — | 1 |
| AS400739US | COM-NOC - City of Mishawaka | 256 | — | 1 |
| AS54924US | NAROPA-UNIVERSITY-BOULDERMAIN - NAROPA UNIVERSITY | 256 | — | 1 |
| AS397508US | NJTPA - North Jersey Transportation Planning Authority, Inc. | 256 | — | 1 |
| AS393965US | ENDLAYER - EndLayer, LLC | 256 | — | 1 |