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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 | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,712 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,958 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,299 |
| DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) |
| — |
| — |
| 0 |
| AS5332US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5333US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5646US | NN-CNSM - NAP.NET, LLC | — | — | 0 |
| AS5678US | PBI-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5691US | MITRE-AS-5 - The MITRE Corporation | — | — | 0 |
| AS5740US | WORKFORCE - WorkForce Software LLC | — | — | 0 |
| AS5748US | BBNET - BB-Net, Inc. | — | — | 0 |
| AS5775US | DIVERS-ALERT-NETWORK - Divers Alert Network, Inc | — | — | 0 |
| AS5819US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5824US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5827US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5855US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5918US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5933US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5938US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5973US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6010US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6029US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6047US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6132US | INGRESSNET - Ingress Enterprises, Inc w/ Ingress Communications, Inc. | — | — | 0 |
| AS6146US | ZUORA - Zuora, Inc | — | — | 0 |
| AS6170US | PENTELEDATA-3 - PenTeleData Inc. | — | — | 0 |
| AS6173US | SMARTLINK - SmartLink Communications Inc. | — | — | 0 |
| AS6182US | MICROSOFT-CORP-MSN-AS-4 - Microsoft Corporation | — | — | 0 |
| AS6184US | DATASTORM - Datastorm Technologies, Inc. | — | — | 0 |
| AS6212US | IGC-DC-AS - Institute for Global Communications | — | — | 0 |
| AS6213US | GETONTHENET - OnThe.Net, Inc. | — | — | 0 |
| AS6215US | AS-ALTO-EXT1 - ALTO | — | — | 0 |
| AS6237US | WEBBED - Webbed Communications | — | — | 0 |
| AS6274US | COGENT-6274 - Cogent Communications, LLC | — | — | 0 |
| AS6309US | GL-936-6309 - Gravabit LLC | — | — | 0 |
| AS6324US | MFS-EAST-AS - MFS Global Network Services, Inc. | — | — | 0 |
| AS6331US | AIT-NET - Atlantic Internet Technologies, Inc. | — | — | 0 |
| AS6354US | LYCOS - Lycos, Inc. | — | — | 0 |
| AS6386US | BELLSOUTH-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS6403US | OPN - Oregon Public Networking | — | — | 0 |
| AS6437US | NETREX - Netrex, Inc. | — | — | 0 |
| AS6480US | LITLE - LitleNet, LLC | — | — | 0 |
| AS6530US | XENSEI - The Xensei Corporation | — | — | 0 |
| AS6587US | AMICUS-ASN - Amicus Networks | — | — | 0 |
| AS6599US | ICCOM-ASN - Internet Communications | — | — | 0 |
| AS6605US | F4IXNY - F4 Networks | — | — | 0 |
| AS6915US | HCSNET-ASNBLK - Hayes Computer Systems | — | — | 0 |
| AS6923US | OKNET - OKNET Internet Services | — | — | 0 |
| AS6942US | CLARINET - ClariNet Communications Corporation | — | — | 0 |
| AS6962US | DTS-EUROPE - Diplomatic Telecommunications Services | — | — | 0 |