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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 | 1,245 |
| 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 | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,952 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,420 |
| DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) |
| — |
| — |
| 0 |
| AS5342US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5368US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5634US | MILESTONE - Milestone Research and Development Labs Inc. | — | — | 0 |
| AS5636US | LISTING - NetWork Access | — | — | 0 |
| AS5674US | PBI-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5675US | PBI-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5689US | HOOSIERNET - HoosierNet, Inc. | — | — | 0 |
| AS5701US | HEALTH-ONE - HealthOne | — | — | 0 |
| AS5704US | CARIBE-NET - Caribbean Internet Service, Corp. | — | — | 0 |
| AS5710US | NBTBA-ASN - NBT BANCORP INC. | — | — | 0 |
| AS5725US | XO - Verizon Business | — | — | 0 |
| AS5754US | PIXINET1 - Pacific Information Exchange, Inc. | — | — | 0 |
| AS5798US | SUPERLATIVE - Superlative, Inc. | — | — | 0 |
| AS5805US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5834US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5872US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5881US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5897US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5912US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5919US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5930US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5985US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6031US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6073US | ETI - KAPS, Inc | — | — | 0 |
| AS6076US | ERINET - CoreComm Internet Services Inc | — | — | 0 |
| AS6096US | SYSNET-1 - Sysnet Corp | — | — | 0 |
| AS6174US | COGENT-6174 - Cogent Communications, LLC | — | — | 0 |
| AS6177US | COGENT-6177 - Cogent Communications, LLC | — | — | 0 |
| AS6217US | ANS-AXISNET - Axis.Net Inc. | — | — | 0 |
| AS6230US | GANET - Global Access Network | — | — | 0 |
| AS6234US | ETAK-NET2 - Etak, Inc. | — | — | 0 |
| AS6311US | OXNET-6311 - FirstLight Fiber, Inc. | — | — | 0 |
| AS6314US | CDC-AS - Chattanooga Data Connection, Inc. | — | — | 0 |
| AS6347US | CENTURYLINK-LEGACY-DIAMOND - CenturyLink Communications, LLC | — | — | 0 |
| AS6375US | XROADS - Crossroads Communications | — | — | 0 |
| AS6388US | BELLSOUTH-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS6402US | TEXAS-AI-SYSTEMS - Texas AI Systems | — | — | 0 |
| AS6417US | AGENTS-INC - Agents, Inc. | — | — | 0 |
| AS6418US | SATELNET-AS - SatelNet Communications, Inc. | — | — | 0 |
| AS6427US | HURRICANE-ELEC - Hurricane Electric LLC | — | — | 0 |
| AS6442US | GLOBALLINK-ASN - Global Link Information Network | — | — | 0 |
| AS6469US | ARTEMIS - Artemis Research | — | — | 0 |
| AS6484US | LUMEN-LEGACY-LEVEL3-RUSSIA - Level 3 Parent, LLC | — | — | 0 |
| AS6552US | C2NET - Community ConneXion, Inc. | — | — | 0 |
| AS6576US | MCC-SUM - SUMMIT COMMUNICATIONS SYSTEM, INC. | — | — | 0 |
| AS6589US | ROZINT - Rozint | — | — | 0 |