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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| — |
| — |
| 0 |
| AS25686US | ASN-GULFPORT-ENERGY-CORPORATION-HEADQUARTERS - GULFPORT ENERGY CORPORATION | — | — | 0 |
| AS25700US | 25700 - SWIFT VENTURES Inc | — | — | 0 |
| AS25783US | AGENT-EBUSINESS - Farmers Group, Inc. | — | — | 0 |
| AS25852US | HUTCHTEL - Hutchinson Telephone Company | — | — | 0 |
| AS26049US | SES-AMERICOM-WBES - SES Americom | — | — | 0 |
| AS26145US | TP-IX - Paul Bunyan Communications | — | — | 0 |
| AS26146US | ASN-CXA-PH-6298-CBS - Cox Communications Inc. | — | — | 0 |
| AS26259US | TELEGIA-AS - Telegia | — | — | 0 |
| AS26266US | TUCSON-IX-ROUTE-SERVERS - Ninja-IX Corporation | — | — | 0 |
| AS26406US | CMIHUB - University of Illinois | — | — | 0 |
| AS26419US | BDA-INC - BDa | — | — | 0 |
| AS26580US | SIE-FTG - Sony Interactive Entertainment LLC | — | — | 0 |
| AS26756US | CSSMCW-AS - Chan Soon-Shiong Medical Center at Windber | — | — | 0 |
| AS26774US | LIGHTSPAR - LightSpar LLC | — | — | 0 |
| AS26797US | CHARTER-26797-NA - Charter Communications LLC | — | — | 0 |
| AS26807US | LANDAM - Oak Point Partners | — | — | 0 |
| AS26811US | ACPRO-ASN-01 - AC Pro | — | — | 0 |
| AS26892US | JOHNS-MANVILLE - Johns Manville | — | — | 0 |
| AS26928US | PARK-NICOLLET-HEALTH-SERVICES - HealthPartners | — | — | 0 |
| AS26944US | MUNICH RE AMERICA SERVICES - Munich Reinsurance America, Inc. | — | — | 0 |
| AS27085US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27088US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27117US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27130US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27146US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27166US | CONTERRA - Conterra | — | — | 0 |
| AS27332US | UNITY-VILLAGE-TELECOMM - Unity School of Christianity | — | — | 0 |
| AS27346US | NEULION-COLLEGE - Paciolan, LLC | — | — | 0 |
| AS27372US | EMERALD-DOMAIN - Uncommon Technology Incorporated | — | — | 0 |
| AS27488US | CITIZENS-TELEPHONE-COMPANY - ZCORUM | — | — | 0 |
| AS27493US | CTRX-AS2 - Catamaran LLC | — | — | 0 |
| AS29853US | CBNEPTUNE-AS-29853 - CB Neptune Holdings, LLC | — | — | 0 |
| AS29969US | AS-PROTOCOL - BI Incorporated | — | — | 0 |
| AS29978US | EISAI-CHI-ASN - Eisai Inc. | — | — | 0 |
| AS30033US | CHI-BIGTEN-FOX - Big Ten Network, LLC | — | — | 0 |
| AS30078US | HUNTELP - Hunt Building Corporation | — | — | 0 |
| AS30124US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS30159US | EQUINIX-CX-TR - Equinix, Inc. | — | — | 0 |
| AS30206US | SURVICE-AS-01 - SURVICE | — | — | 0 |
| AS30365US | PITIX - Pittsburgh Internet Exchange | — | — | 0 |
| AS30422US | DESMOINESIX - Kansas City Internet eXchange | — | — | 0 |
| AS30493US | DENTONS-US-LLP - Dentons US LLP | — | — | 0 |
| AS30506US | CLOUD-SYNCINC-2 - Cloud Sync Inc | — | — | 0 |
| AS30621US | IES-CENTRAL - Interactive Educational Services, Inc. | — | — | 0 |
| AS30661US | TMXATRIUM - Atrium Network | — | — | 0 |
| AS30683US | SOUTHMILL - Southern Mills, Inc. | — | — | 0 |