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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 | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| 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 | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| TISHNET - The Information SuperHighway Corp |
| — |
| — |
| 0 |
| AS5735US | GALT-TECHNO - Galt Technologies | — | — | 0 |
| AS5736US | VEL-AS - Velocity Networks, Inc. | — | — | 0 |
| AS5750US | FLEXNET-HAWAII - FlexNet Inc. | — | — | 0 |
| AS5784US | GETNET - Getnet International | — | — | 0 |
| AS5793US | PENTELEDATA-2 - PenTeleData Inc. | — | — | 0 |
| AS5806US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5813US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5818US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5820US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5838US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5878US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5890US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5894US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5903US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5920US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5935US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5952US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5968US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5987US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6001US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6049US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6050US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6066US | VERIZON-BUSINESS-MAE-AS6066 - Verizon Business | — | — | 0 |
| AS6070US | FUTURIS - Futuris Networks Inc. | — | — | 0 |
| AS6090US | TIA-AS - Techmatics Informaton Alliance | — | — | 0 |
| AS6100US | CENTURYLINK-LEGACY-FUSEPOINT-RESERVED-IPADMIN - CenturyLink Communications, LLC | — | — | 0 |
| AS6159US | TWAVE - Greer Educational Resources, Inc. | — | — | 0 |
| AS6207US | BUNNY-COMMUNICATIONS - Bunny Communications | — | — | 0 |
| AS6244US | SWIEC - Swieca Holdings, LLC | — | — | 0 |
| AS6251US | PSNET - UCLA Physical Sciences Division | — | — | 0 |
| AS6257US | NOVALINK-GW - Novalink USA | — | — | 0 |
| AS6265US | SIVENSA - Sivensa Corp. | — | — | 0 |
| AS6281US | CMSA - CMS Automation, Inc. | — | — | 0 |
| AS6284US | METRONET - MetroNet Internet Services | — | — | 0 |
| AS6298US | ASN-CXA-PH-6298-CBS - Cox Communications Inc. | — | — | 0 |
| AS6308US | ALASCOM-MIS - AT&T ALASCOM | — | — | 0 |
| AS6345US | ZIPNET-AS - ZipCall Internet Services | — | — | 0 |
| AS6350US | VRIS-6350 - Verizon Business | — | — | 0 |
| AS6353US | NETZONE - Netzone, L.L.C. | — | — | 0 |
| AS6376US | BRODER207 - Broderbund Software | — | — | 0 |
| AS6439US | WEBMATE - Webmate Technologies, Inc. | — | — | 0 |
| AS6463US | ZAYO-CAN-6463 - Zayo Bandwidth | — | — | 0 |
| AS6506US | HOYT - David H. Hoyt & COS., Inc. | — | — | 0 |
| AS6563US | NECANET - NECAnet, Inc. | — | — | 0 |
| AS6573US | MPATH - MPATH Interactive | — | — | 0 |
| AS6574US | GLMX-ASN - Worldview Systems | — | — | 0 |