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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 | 24,512 |
| 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.
32,235 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 | 4,281 |
| — |
| — |
| 0 |
| AS26733US | AISN - AMERICAN INTERNET SERVICES NETWORK | — | — | 0 |
| AS26746US | HARVARD-PILGRIM-HEALTH-CARE - Harvard Pilgrim Health Care, Inc. | — | — | 0 |
| AS26825US | CHARTER-26825-NA - Charter Communications LLC | — | — | 0 |
| AS26847US | MEGAS-ASN-01 - MEGAS, LLC | — | — | 0 |
| AS26870US | PARKTERRACE72 - Park Terrace Gardens | — | — | 0 |
| AS26874US | LTC-INET - Fidelity National Financial Inc. | — | — | 0 |
| AS26947US | AS-PAC-OPS - Pacificorp | — | — | 0 |
| AS27034US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27041US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27055US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27056US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27077US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27128US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27148US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27179US | IWEL-27179 - Invisalink Wireless | — | — | 0 |
| AS27184US | IFOXNETBD-ENSONO-DCCS - Ensono LP | — | — | 0 |
| AS27186US | REXINDUSTRIES - Rexnord Industries, LLC | — | — | 0 |
| AS27191US | LLNW-IAD - Limelight Networks, Inc. | — | — | 0 |
| AS27234US | CROWNCASTLE-AS27234 - Crown Castle Fiber LLC | — | — | 0 |
| AS27255US | ASN-SERVASTIC - Servastic | — | — | 0 |
| AS27406US | CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation | — | — | 0 |
| AS27447US | SRZLLPAS - Schulte Roth & Zabel LLP | — | — | 0 |
| AS27466US | EQUINIX-CX-WI - Equinix, Inc. | — | — | 0 |
| AS27547US | ARCHMI-AS1 - Arch Capital Services LLC | — | — | 0 |
| AS27620US | DSV - DSV Air & Sea Inc. | — | — | 0 |
| AS27641US | LBDC-LONGBEACHDATACENTER-US - Long Beach Data Center | — | — | 0 |
| AS29775US | ALSCO - ALSCO | — | — | 0 |
| AS29880US | FFIL-ASN - FLEXIBLE FREEDOM INNOVATIONS LLC | — | — | 0 |
| AS29896US | INNOVATIVE-INTERFACES-INC-2 - Innovative Interfaces, Inc. | — | — | 0 |
| AS30125US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS30186US | CLOUD-SYNCINC - Cloud Sync Inc | — | — | 0 |
| AS30246US | CYRUSONE-CIN2 - CyrusOne LLC | — | — | 0 |
| AS30261US | TREASURE-STATE-INTERNET - Treasure State Internet | — | — | 0 |
| AS30287US | IAAWG - IA American Warranty Corp | — | — | 0 |
| AS30353US | IMB-SBC - International Mission Board of the Southern Baptist Convention | — | — | 0 |
| AS30354US | NETRI-17 - Netrix LLC | — | — | 0 |
| AS30421US | PRC-PA - Placid Refining Company LLC | — | — | 0 |
| AS30441US | SOUTHPOINT-1114-6TH-AVE - Southpoint Capital Advisors, LP | — | — | 0 |
| AS30469US | VONAGE-03 - Vonage Holdings, Inc. | — | — | 0 |
| AS30473US | ETHANALLEN - Ethan Allen Global, Inc. | — | — | 0 |
| AS30504US | PROFITABILITY - Profitability.net | — | — | 0 |
| AS30527US | ASN-USMARCHON - Marchon Eyewear Inc. | — | — | 0 |
| AS30552US | SAINT-JOSEPHS-HOSPITAL-OF-ATLANTA - Saint Joseph's Hospital of Atlanta, Inc. | — | — | 0 |
| AS30566US | WOLP-ASN - Whippoorwill Operations, L.P. | — | — | 0 |
| AS30608US | UNIVERSITY-OF-PHOENIX-CX - Aptimus | — | — | 0 |
| AS30649US | PRINCIPALS - National Association of Secondary School Principals | — | — | 0 |