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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) |
| — |
| — |
| 0 |
| AS5971US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6018US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6030US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6093US | INFSYS-ASN - Infinite Systems | — | — | 0 |
| AS6115US | HTW - HarvardNet | — | — | 0 |
| AS6119US | WWWPASS - WWW Passport Inc | — | — | 0 |
| AS6120US | INTERGLOBE - interGlobe Networks, Inc. | — | — | 0 |
| AS6160US | SMARTS-1 - System Management ARTS, Inc. | — | — | 0 |
| AS6201US | ATEXT - Architext | — | — | 0 |
| AS6243US | RISE-IA-3 - JAB Wireless, INC. | — | — | 0 |
| AS6264US | AS-ALTO-EXT2 - ALTO | — | — | 0 |
| AS6338US | MIX-COMMUNICATIONS - MIX Communications | — | — | 0 |
| AS6387US | BELLSOUTH-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS6399US | NEREP-ASN - You Tools Corporation | — | — | 0 |
| AS6432US | GOOGLE-FIBER - Google Fiber Inc. | — | — | 0 |
| AS6433US | JLC - John Leslie Consulting | — | — | 0 |
| AS6435US | TRI-NET-SOLUTIONS - Tri-Net Solutions LLC. | — | — | 0 |
| AS6443US | EMANON - Emanon Service Corporation | — | — | 0 |
| AS6464US | FUTURELABS - FutureLabs, Inc. | — | — | 0 |
| AS6494US | COGENT-6494 - Cogent Communications, LLC | — | — | 0 |
| AS6516US | TRUENET - TrueNet Corporation | — | — | 0 |
| AS6538US | KINTEK-AS - Tai Feng Corp | — | — | 0 |
| AS6541US | VZN-VOL1 - Verizon Business | — | — | 0 |
| AS6542US | MICL-AS-MELBOURNE - M.I.C.L. | — | — | 0 |
| AS6544US | ADICON-ASN - Advanced Digital Concepts, Inc. | — | — | 0 |
| AS6555US | RCN-AS6555 - RCN | — | — | 0 |
| AS6604US | PTW - Lancaster Internet | — | — | 0 |
| AS6612US | JAGUNET - jaguNET Access Services | — | — | 0 |
| AS6953US | NETONLINE208 - Internet Marketing Solutions | — | — | 0 |
| AS7061US | COGENT-7061 - Cogent Communications, LLC | — | — | 0 |
| AS7062US | DE-JAZZD7062 - Windstream Communications LLC | — | — | 0 |
| AS7070US | IHEARTMEDIA-AS-7070 - iHeartCommunications, Inc. | — | — | 0 |
| AS7075US | NN-RS00-RS06 - NAP.NET, LLC | — | — | 0 |
| AS7102US | APLATFORM-AS - Aplatform | — | — | 0 |
| AS7143US | HHRASN - Hughes Hubbard & Reed LLP | — | — | 0 |
| AS7168US | VIASAT-2 - ViaSat,Inc. | — | — | 0 |
| AS7177US | DFWNET - DFW Internet Services, Inc. | — | — | 0 |
| AS7207US | INTREXNET - Intrex Inc. | — | — | 0 |
| AS7217US | EARTHWEB - Earthweb | — | — | 0 |
| AS7316US | NETECH - North East Technologies | — | — | 0 |
| AS7353US | PRIMUS - Primus Communications Corp. | — | — | 0 |
| AS7360US | PUREATRIA - Pure Atria Software | — | — | 0 |
| AS7372US | IPEXCHANGE-NJ - AV-Network, Inc. | — | — | 0 |
| AS7376US | INFORONICS - Inforonics, Inc. | — | — | 0 |
| AS7394US | FLYINGPENGUIN - Flying Penguin Productions Limited | — | — | 0 |
| AS7457US | THESPHERE-AS - The Sphere Information Services | — | — | 0 |