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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,291 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,268 |
| 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 | 411 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,732 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,968 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS2993US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2994US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2998US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3037US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3042US | LACHMAN-ASN - Lachman Technology, Inc. | — | — | 0 |
| AS3049US | RICE-AS3049 - Rice University | — | — | 0 |
| AS3362US | GROUP-NAMES - Data Transfer Group | — | — | 0 |
| AS3406US | UUN - UUN | — | — | 0 |
| AS3417US | DNIC-AS-03417 - United States Department of Defense (DoD) | — | — | 0 |
| AS3426US | ESNET-AS - ESnet | — | — | 0 |
| AS3432US | ESNET-AS - ESnet | — | — | 0 |
| AS3442US | ESNET-AS - ESnet | — | — | 0 |
| AS3445US | ESNET-AS - ESnet | — | — | 0 |
| AS3475US | DNIC-AS-03475 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS3507US | IPSWAT TEAM - IPSwat LLC | — | — | 0 |
| AS3521US | DSI-WR - RTX BBN Technologies, Inc. | — | — | 0 |
| AS3533US | DNIC-AS-03533 - United States Department of Defense (DoD) | — | — | 0 |
| AS3543US | DNIC-AS-03543 - United States Department of Defense (DoD) | — | — | 0 |
| AS3581US | OBS-NET - Open Business Systems Inc. | — | — | 0 |
| AS3600US | SUNNET-AS - Sun Networks, Inc. | — | — | 0 |
| AS3642US | GSA-PAN-DDN - GSA Data Communications and Networking Branch | — | — | 0 |
| AS3648US | COGENT-3648 - Cogent Communications, LLC | — | — | 0 |
| AS3652US | COGENT-3652 - Cogent Communications, LLC | — | — | 0 |
| AS3673US | SYNERGYNET - Synergy Commincations, Inc. | — | — | 0 |
| AS3687US | GLOBALCOM-1 - Globalcom | — | — | 0 |
| AS3750US | NETPOINT1-NET - Net Point LLC | — | — | 0 |
| AS3878US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3894US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3904US | ASTHOUGHTPRT - ThoughtPort inc. | — | — | 0 |
| AS3922US | OPENTEXT-EMEA-NL-AMSTELVEEN - GXS | — | — | 0 |
| AS3953US | PROFILE - Profile International | — | — | 0 |
| AS3957US | AIP - American Institute of Physics Incorporated | — | — | 0 |
| AS3965US | INTERLINK-3 - Verizon Business | — | — | 0 |
| AS4017US | BELLST - Verizon Business | — | — | 0 |
| AS4026US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS4038US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS4124US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4163US | TIN-1 - Air Force Systems Networking | — | — | 0 |
| AS4222US | LEN-NET - University of Oregon | — | — | 0 |
| AS4259US | IOCOM - IOCOM, LTD | — | — | 0 |
| AS4262US | CERNET-ASN-BLOCK - California Education and Research Federation Network | — | — | 0 |
| AS4269US | CERNET-ASN-BLOCK - California Education and Research Federation Network | — | — | 0 |
| AS4281US | CENTURYLINK-TSDS-FLWNPK - CenturyLink Communications, LLC | — | — | 0 |
| AS4336US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4351US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4355US | ERMS-EARTHLNK - Windstream Communications LLC | — | — | 0 |