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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,247 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,189 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,901 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,010 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,222 |
| 2.8K |
| — |
| 11 |
| AS10340US | TELE-TECH - TELE-TECH CO. INC. | 2.8K | — | 5 |
| AS402898US | PPFLIGHT - ppflight | 2.8K | 256 | 7 |
| AS35995US | TWITTER - Twitter Inc. | 2.8K | — | 6 |
| AS6553US | HTCNET-ORG - HTCNET.ORG | 2.8K | — | 6 |
| AS1086US | GET-REAL-CABLE-ASN - Get LLC | 2.8K | — | 8 |
| AS399111US | CAMELLIA-FIBER - CAMELLIA FIBER | 2.8K | 65.5K | 6 |
| AS26989US | HR-WORLD-HEADQUARTERS - H&R Block | 2.8K | — | 8 |
| AS6404US | FACTSET - FactSet Research Systems, Inc. | 2.8K | — | 10 |
| AS25905US | FIRESERVE - FireServe, LLC | 2.8K | 65.8K | 6 |
| AS14487US | WIND-RIVER-INTENET - Wind River Internet | 2.8K | 65.5K | 6 |
| AS19903US | REACHBROADBAND - Reach Broadband LLC | 2.8K | — | 11 |
| AS393460US | CNSP-ASN - NMSURF | 2.8K | — | 5 |
| AS394749US | EQUINIX-SOLUTION-VALIDATION-CENTER - Equinix, Inc. | 2.8K | 5 | 16 |
| AS63252US | HCDL-PHOENIX-DATA-CENTER - H5 Data Centers | 2.8K | 8.2K | 6 |
| AS25673US | RMSSLB - Cellnet Innovations, Inc. | 2.8K | — | 6 |
| AS149513US | VCL-147-149513 - Vertex Connectivity LLC | 2.8K | 1.3K | 18 |
| AS400513US | IPIPE-INC - IPIPE International, Corp. | 2.8K | 256 | 9 |
| AS15071US | BAX-BGP - BAX GLOBAL | 2.8K | — | 5 |
| AS18715US | NYPA - New York Power Authority | 2.8K | — | 11 |
| AS20034US | FIRST-NATIONAL-TECHNOLOGY-SOLUTONS - First National Technology Solutions, Inc. | 2.8K | — | 5 |
| AS56443US | IWL-44-56443 - IP WAY LLC | 2.8K | — | 11 |
| AS17089US | CINCCHILDRENS - Cincinnati Children's Hospital Medical Center | 2.8K | — | 7 |
| AS10690US | NETSCOUT - NETSCOUT SYSTEMS INC. | 2.8K | 1 | 12 |
| AS394345US | WSU-SEA-AS - Washington State University | 2.8K | — | 4 |
| AS6482US | THRYV - Thryv | 2.8K | — | 9 |
| AS15086US | QVC - QVC, Inc. | 2.8K | — | 9 |
| AS397772US | NTS-MCALLEN-01 - Vexus Fiber | 2.8K | — | 5 |
| AS6363US | EXTREME-NETWORKS - Extreme Networks, Inc. | 2.8K | 522 | 14 |
| AS19477US | FLYINGJ - F J Management Inc. | 2.8K | — | 11 |
| AS8000US | DWX-AS - Waddell Digital Imaging Center | 2.8K | — | 11 |
| AS21633US | DOI-NBC-NET - U.S. Department of the Interior | 2.8K | — | 4 |
| AS401514US | KVW-AS01 - Kern Valley Wireless, Inc | 2.8K | 69.6K | 8 |
| AS22732US | LINKNET - Kitsap Regional Library | 2.8K | — | 4 |
| AS36213US | DWASKG - DreamWorks Animation SKG, Inc. | 2.8K | — | 3 |
| AS19936US | GORDONFOODS - Gordon Food Service | 2.8K | — | 6 |
| AS27353US | IUHEALTH-ASN - Indiana University Health Inc. | 2.8K | — | 11 |
| AS54720US | CLOUDKEY - Global IP Networks INC | 2.8K | — | 8 |
| AS9087US | RACKDOG-EU Rackdog, LLC | 2.8K | — | 9 |
| AS46970US | ALLBANDCOMMUNICATIONS - Allband Communications Cooperative | 2.8K | — | 7 |
| AS393514US | NEW-HAMPTON-MUNICIPAL-LIGHT-PLANT-01 - New Hampton Municipal Light Plant | 2.8K | — | 3 |
| AS57US | NL-GIGAPOP - University of Minnesota | 2.8K | 65.5K | 5 |
| AS30419US | PAEDAE-INC - PaeDae, Inc. | 2.8K | — | 11 |
| AS16992US | FLT-15 - FIRST LINK TECHNOLOGY, INC. | 2.8K | — | 11 |
| AS19329US | MCNET - Martin County Board of County Commissioners | 2.8K | — | 3 |
| AS25846US | US-CLOUDNIUM-01 - Cloudnium LLC | 2.8K | 1 | 11 |
| AS55077US | LIGHTSPEED-TECHNOLOGIES - LIGHT SPEED TECHNOLOGIES LLC | 2.8K | — | 5 |