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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| — |
| — |
| 0 |
| AS19492US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS14854US | AOL-MTC2 - Yahoo Holdings Inc. | — | — | 0 |
| AS6626US | MULTITASKING - Multi-Tasking, Inc. | — | — | 0 |
| AS14949US | VSATSYSTEMS-01 - Satassurance, LLC | — | — | 0 |
| AS14648US | COUNTY-OF-BUTTE-CA - COUNTY OF BUTTE | — | — | 0 |
| AS17041US | AS-LRCOMM-ORIG - L.R. Communications, Inc. | — | — | 0 |
| AS17027US | PEAK10ATL - Flexential Corp. | — | — | 0 |
| AS16759US | SWA-MKT-INET - Southwest Airlines Co. | — | — | 0 |
| AS18714US | RSNAK-01 - Rock Solid Networks of Alaska LLC | — | — | 0 |
| AS4240US | NJNET-AS - New Jersey Net, Inc. | — | — | 0 |
| AS4122US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS53459US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS5953US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6045US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS46316US | DREC-AS-01 - Dayton Realtime Equipment Company | — | — | 0 |
| AS46297US | NEWWAVECOMM3 - New Wave Communications | — | — | 0 |
| AS40917US | AUTOTASK-CORPORATION - Autotask Corporation | — | — | 0 |
| AS46234US | LIKECO - Like.Com | — | — | 0 |
| AS40592US | DACSCX-US - DACS Cloud | — | — | 0 |
| AS40561US | MANAGEDCOM-US1 - HostPapa | — | — | 0 |
| AS5993US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5871US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS46547US | RMF-ENGINEERING-MEP - Rmf Engineering, Inc. | — | — | 0 |
| AS46529US | CORESITE-SPARE - CoreSite | — | — | 0 |
| AS46423US | TERRA-HOSTING - Terra Hosting | — | — | 0 |
| AS46487US | YAKAMANATIONNETWORKS-01 - Yakama Nation Networks | — | — | 0 |
| AS36405US | SBC-HOUSTON - Second Baptist Church | — | — | 0 |
| AS36370US | MEMX-LLC - MEMX | — | — | 0 |
| AS33750US | FASTSIGNS-INTL - FASTSIGNS International, Inc. | — | — | 0 |
| AS7112US | MTSI-ASN - MTS Internet, Inc. | — | — | 0 |
| AS6592US | NETUS - Netus, Inc. | — | — | 0 |
| AS6392US | MWCI-NET - MidWest Communications, Inc. | — | — | 0 |
| AS3540US | DNIC-AS-03540 - United States Department of Defense (DoD) | — | — | 0 |
| AS6176US | COGENT-6176 - Cogent Communications, LLC | — | — | 0 |
| AS6154US | SPRINTLINK-NYSERNET5 - SPRINT, Business Serices Group | — | — | 0 |
| AS7811US | ITOCHU - ITOCHU Techno-Solutions America, Inc. | — | — | 0 |
| AS7813US | NPL - The Northwest PC Link | — | — | 0 |
| AS7225US | GLOBALNETCORP - Global Net Corporation | — | — | 0 |
| AS396466US | THE-FRICK-COLLECTION - The Frick Collection | — | — | 0 |
| AS7327US | 7THLEVEL - 7th Level, Inc. | — | — | 0 |
| AS6576US | MCC-SUM - SUMMIT COMMUNICATIONS SYSTEM, INC. | — | — | 0 |
| AS35848US | GRIZZLINK - 20C, LLC | — | 16 | 1 |
| AS5243US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5193US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5224US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS6004US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |