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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,749 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,226 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| — |
| — |
| 0 |
| AS23071US | HUNTING-INTL - HUNTING ENERGY SERVICES, LLC | — | — | 0 |
| AS23164US | LLNW-SFO - Limelight Networks, Inc. | — | — | 0 |
| AS23319US | CHROME-DATA-SOLUTIONS - Chrome Data Solutions, LP | — | — | 0 |
| AS23405US | COMMERZBANKUSA - Commerzbank AG New York Branch | — | — | 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 |
| AS26363US | MEDTRONIC-AS-2 - Medtronic, Incorporated | — | — | 0 |
| AS26406US | CMIHUB - University of Illinois | — | — | 0 |
| AS26419US | BDA-INC - BDa | — | — | 0 |
| AS26580US | SIE-FTG - Sony Interactive Entertainment LLC | — | — | 0 |
| AS26698US | PSA-INC - PARAMOUNT SOFTWARE ASSOCIATES, INC. | — | — | 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 |
| AS26969US | ACE-002 - Ace Data Centers II, L.L.C. | — | — | 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 |
| AS27285US | ADAM-ASN - Oppenheimer Capital/Quest for Value | — | — | 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 |
| AS30365US | PITIX - Pittsburgh Internet Exchange | — | — | 0 |