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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 | 21,260 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,265 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,727 |
| 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 | 4,328 |
| DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) |
| — |
| — |
| 0 |
| AS5331US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5340US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5343US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5676US | PBI-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5698US | NETPUB-AS - Network Publishing, Inc. | — | — | 0 |
| AS5717US | IWIN-NET - World Information Network, Inc. | — | — | 0 |
| AS5732US | ACCESINDIANA - Sprint, Sprintlink Engineering | — | — | 0 |
| AS5753US | EMPAC-DOM - EMPaC International Corp. | — | — | 0 |
| AS5821US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5847US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5856US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5888US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5893US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5895US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5932US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5941US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5951US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5966US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5983US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5992US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5997US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6005US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6022US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6024US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6131US | HOSP-INFO-NET - Hospitality Information Networks, Inc. | — | — | 0 |
| AS6144US | SOUND-ADVICE-LTD - Sound Advice Limited | — | — | 0 |
| AS6190US | GSIC-WI - Radial, Inc. | — | — | 0 |
| AS6211US | SPRNTDATANET - Sprint Communications Corp. | — | — | 0 |
| AS6229US | NETVOYAGE - Digital Design (NETVOYAGE-DOM) | — | — | 0 |
| AS6252US | EVOLUTION - Evolution On-Line Systems, Inc. | — | — | 0 |
| AS6255US | CHANNEL1 - Channel 1 Communications | — | — | 0 |
| AS6326US | LEBANET1 - LebaNet, Inc. | — | — | 0 |
| AS6335US | NTRNET - NTR.NET Corporation | — | — | 0 |
| AS6339US | I95-NET - Voicelink Communications, Inc. | — | — | 0 |
| AS6408US | PRADO - Prado Internet Access INc. | — | — | 0 |
| AS6504US | NOVAGATE - Novagate Communications Corporation | — | — | 0 |
| AS6533US | VARNER - Varner Technologies | — | — | 0 |
| AS6557US | CLINIC - C. C. Net, Inc. | — | — | 0 |
| AS6567US | CIA - Cable Internet Access Inc. d/b/a WorldNET | — | — | 0 |
| AS6654US | NSGDA-AS - NSGDatacom, Inc. | — | — | 0 |
| AS6944US | NTTA-6944 - NTT America, Inc. | — | — | 0 |
| AS6980US | CAJUNNET-AS - Cajun.Net | — | — | 0 |
| AS6991US | USLD-ASN - US Long Distance | — | — | 0 |
| AS7067US | TECHINTER - Technology Interface, Inc. | — | — | 0 |
| AS7097US | HWSERVICES--7097 - Ntirety, Inc. | — | — | 0 |
| AS7117US | NETCAST - Netcast Communications Corp. | — | — | 0 |