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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. | 218M | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| — |
| — |
| 0 |
| AS23482US | EVERBRIDGE-PLANETRISK - Everbridge, Inc | — | — | 0 |
| AS23530US | RDX-NA-DC-AS1 - Remote DBA Experts LLC | — | — | 0 |
| AS24910US | HIGHBRIDGELDN JPMorgan Chase & Co | — | — | 0 |
| AS25634US | EPIQAS-1 - DOCUMENT | — | — | 0 |
| AS25690US | MAMSI - UnitedHealth Group Incorporated | — | — | 0 |
| AS25859US | SWIFT-TRANSPORTATION-CO-INC - Swift Transportation Company | — | — | 0 |
| AS25877US | OPEN-MOBILE-PUERTO-RICO - T-Mobile USA, Inc. | — | — | 0 |
| AS26022US | FIRST-NORTHERN-BANK - First Northern Bank | — | — | 0 |
| AS26024US | VIEWQ-NET - Viewqwest, Inc | — | — | 0 |
| AS26051US | BDE - City of Baltimore, Mayor's Office of Information Technology | — | — | 0 |
| AS26058US | NETSMART-PLEXUS-CLOUD - Netsmart Technologies | — | — | 0 |
| AS26115US | MIDATL-1 - MidAtlanticBroadband Maryland, Inc. | — | — | 0 |
| AS26170US | FRTCI-DOM - Flat Rock Internet Service | — | — | 0 |
| AS26183US | OTSM - On The Spot Media LLC | — | — | 0 |
| AS26188US | SPE - Sony Pictures Entertainment Inc | — | — | 0 |
| AS26193US | WHOLESALE-DATACENTER - Wholesale Data Center, LC | — | — | 0 |
| AS26201US | ABOUT-COM - ABOUT, INC. | — | — | 0 |
| AS26228US | SERVEPATH - DataPipe, Inc. | — | — | 0 |
| AS26236US | NEXON - Nexon America Inc. | — | — | 0 |
| AS26285US | WESTERN-STATES-TELEPORT - Crosslink Networks | — | — | 0 |
| AS26387US | WSC-WYOMISSINGPA - Weidenhammer | — | — | 0 |
| AS26401US | XLSC - XPO | — | — | 0 |
| AS26466US | HCL - Hotel Connections Ltd. | — | — | 0 |
| AS26514US | TAYLORFARMS - Taylor Fresh Farm Foods | — | — | 0 |
| AS26553US | PSE-AS-ESO - Puget Sound Energy | — | — | 0 |
| AS26668US | SFCU-DC - Stanford Federal Credit Union | — | — | 0 |
| AS26676US | GENPAC - General Pacific, Inc. | — | — | 0 |
| AS26726US | THERE47 - The Reinvestment Fund | — | — | 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 |