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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) | 227.7M | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,157 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,247 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 400 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,712 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,959 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,302 |
| CENTURYLINK-QC-MOE-DULUTH - CenturyLink Communications, LLC |
| — |
| — |
| 0 |
| AS4350US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4368US | CRCNET - Coleman Research Corporation | — | — | 0 |
| AS4370US | TELERES-NET - Datalytics, Inc | — | — | 0 |
| AS4442US | DNIC-AS-04442 - Headquarters, USAISC | — | — | 0 |
| AS4444US | CISNET-AS - CISNet Inc. | — | — | 0 |
| AS4513US | INTERNAP-4513 - Unitas Global | — | — | 0 |
| AS4542US | RRNET-AS - Red River Net, Inc. | — | — | 0 |
| AS4553US | MERIT-AS-29 - Merit Network Inc. | — | — | 0 |
| AS4874US | TRANSUT - Uncommon Technology Incorporated | — | — | 0 |
| AS4931US | INTERSRV2 - Internet Services of Central Florida | — | — | 0 |
| AS4962US | WINKCOMM - Wink Communications Group, Inc. | — | — | 0 |
| AS4969US | OPENIX-RS - P Foundation | — | — | 0 |
| AS4987US | ALOHANET2 - Hawaiian Telcom Services Company, Inc. | — | — | 0 |
| AS5034US | AS-STARNET - STAR Communications | — | — | 0 |
| AS5042US | INFOWAVE - Discnet | — | — | 0 |
| AS5072US | INDYNET - IndyNet | — | — | 0 |
| AS5109US | UNITI-AS5109 - Uniti Fiber Holdings Inc. | — | — | 0 |
| AS5140US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5141US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5156US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5159US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5181US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5189US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5222US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5227US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5271US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5287US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5298US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5316US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5325US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5327US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5334US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5345US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5358US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5680US | PBI-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5699US | ASN-AHRCNYC - AHRC New York City | — | — | 0 |
| AS5703US | TIGERFUND - Tiger Management Coporation | — | — | 0 |
| AS5731US | 5731 - AT&T Enterprises, LLC | — | — | 0 |
| AS5763US | TRI-DEV-GRP - Trilogy, Inc. | — | — | 0 |
| AS5794US | NWREGION-ESD - Northwest Regional ESD | — | — | 0 |
| AS5800US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5810US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5835US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5844US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5883US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5885US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |