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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. | 218M | 23,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| 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.
32,143 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 | 3,820 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,994 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,278 |
| AFP-NET - AGENCE FRANCE PRESSE |
| 77.1K |
| — |
| 17 |
| AS32505US | DWL-MAIN - Conterra | 76.5K | 132.1K | 193 |
| AS23404US | RITTERNET - Ritter Communications | 76.5K | 66K | 92 |
| AS396269US | BPL-ASN - Buckeye Partners L.P. | 76.5K | — | 11 |
| AS85US | AERO-NET - The Aerospace Corporation | 76.3K | 16 | 16 |
| AS40509US | FLY - Fly.io, Inc. | 76K | 71 | 260 |
| AS3709US | NET-CITY-SA - City of San Antonio | 75.8K | — | 37 |
| AS4213US | EVOCATIVE-GLOBAL - Krypt Technologies | 75.8K | 165.9K | 120 |
| AS12226US | AS12226 - CIBC World Markets | 75.8K | — | 10 |
| AS46564US | NORDST-AS - Nordstrom, Inc. | 75.8K | — | 3 |
| AS46158US | OCMBOCES - OCM BOCES | 75.8K | — | 32 |
| AS61317US | ASDETUK Hivelocity LLC | 75.5K | 1.3K | 260 |
| AS3926US | FFX-CNTY - Fairfax County Dept of Information Technology | 75.3K | — | 8 |
| AS2033US | PANIX - Panix | 75.3K | 4.1K | 11 |
| AS264US | SRINET-AS - SRI International | 75K | — | 37 |
| AS4195US | SHAW - D. E. Shaw & Co. LP | 75K | — | 21 |
| AS40581US | AREON-AS - Arkansas Research and Education Optical Network | 75K | 65.5K | 19 |
| AS4511US | MIAMI-EDU - University of Miami | 75K | — | 7 |
| AS14523US | GEA-CONNECT - Greeneville Energy Authority | 74.8K | 65.5K | 6 |
| AS17049US | MBO-NET - MBO Video, LLC | 74.8K | 65.5K | 72 |
| AS6364US | ATLANTIC-NET-1 - Atlantic.net, Inc. | 74.8K | 288 | 112 |
| AS63139US | BEDGE-CO-LIMITED - BEDGE CO LIMITED | 74.2K | 53 | 327 |
| AS21582US | NAU-AS - Northern Arizona University | 74.2K | — | 4 |
| AS32444US | ANTHEMBB - Anthem Broadband | 74K | 65.5K | 41 |
| AS32798US | HIGHLINE-AS - Highline Services, LLC | 74K | 114.7K | 82 |
| AS46592US | TOMBIGBEECOMM-1 - Tombigbee Communications, LLC | 74K | — | 107 |
| AS16713US | NOANET-WA - Northwest Open Access Network | 74K | 131.1K | 62 |
| AS11939US | MATHWORKS - THE MATHWORKS, INC. | 74K | — | 25 |
| AS2552US | WUSTL-ASN - Washington University | 74K | 131.1K | 5 |
| AS214483US | FIBERPOWER-AS FiberPower LLC | 74K | 5M | 241 |
| AS13611US | CDC - U.S. Center For Disease Control and Prevention | 73.7K | — | 2 |
| AS22887US | WIU-AS - Western Illinois University | 73.7K | — | 5 |
| AS62676US | UMD-PUBLIC-AS - University of Michigan - Dearborn | 73.7K | — | 2 |
| AS14954US | FHCRC - The Fred Hutchinson Cancer Research Center | 73.7K | — | 2 |
| AS22968US | MIAMI-UNIVERSITY - Miami University | 73.7K | — | 2 |
| AS3378US | MCI-ASN - Verizon Business | 73.7K | — | 38 |
| AS32136US | FARMINGDALESTATE - Farmingdale State College | 73.7K | — | 2 |
| AS7106US | INDEPENDENTSFIBERNETWORK - Com Net, Inc. | 73.7K | 65.5K | 9 |
| AS11745US | USNH - University System of New Hampshire | 73.7K | 65.5K | 3 |
| AS30041US | RACE - Race Tech, LLC | 73.5K | 1.1M | 287 |
| AS3911US | MIS-AS - Micron Technology, Inc. | 73.5K | — | 31 |
| AS54483US | GEOLINKS-AS - GeoLinks | 73.2K | 196.6K | 104 |
| AS14127US | ILAND - Iland Internet Solutions Corporation | 73.2K | — | 254 |
| AS1561US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | 73.2K | — | 7 |
| AS348US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 73.2K | 256 | 24 |
| AS10546US | MSSTATE - Mississippi State University | 73.2K | — | 5 |
| AS397353US | TDY-US1-DC - Teledyne Technologies Incorporated | 73.2K | — | 31 |