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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| WAGEWORKS - WAGEWORKS, Inc. |
| 2.3K |
| — |
| 2 |
| AS395576US | WLF - West Liberty Foods | 2.3K | — | 2 |
| AS2941US | ONEPA-DUFVA - OnePartner, LLC | 2.3K | — | 3 |
| AS395848US | KING-NETWORKS - King Networks LLC | 2.3K | — | 9 |
| AS55011US | EFOLDER - eFolder, Inc | 2.3K | — | 9 |
| AS20096US | AMS-MIP-CA - HEWLETT PACKARD ENTERPRISE COMPANY | 2.3K | — | 3 |
| AS395922US | GCET-GREENFIELD-MA - GCET | 2.3K | — | 2 |
| AS402898US | PPFLIGHT - ppflight | 2.3K | 256 | 6 |
| AS400043US | IBRIDGE-01 - IBRIDGE CLOUD TECHNOLOGIES, INC | 2.3K | — | 6 |
| AS25798US | NTS-HUNTSVILLE-01 - Vexus Fiber | 2.3K | — | 5 |
| AS46576US | LOEWS-HOTELS-ORLANDO - Loews Hotels at Universal Orlando | 2.3K | — | 9 |
| AS399307US | STERLING-MA - Town of Sterling | 2.3K | 65.5K | 4 |
| AS17274US | RWBAIRD - Robert W. Baird & Co. Incorporated | 2.3K | — | 6 |
| AS19602US | AS19602 - Cantor Fitzgerald & Co. | 2.3K | — | 9 |
| AS399519US | WILDSTAR-NETWORKS-01 - WildStar Networks | 2.3K | — | 4 |
| AS396431US | T38FAX-ASN-1 - T38Fax Incorporated | 2.3K | 3 | 9 |
| AS397092US | BAYS-ET-HIGHSPEED - Bays ET highspeed LLC | 2.3K | — | 4 |
| AS485US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 2.3K | — | 5 |
| AS22213US | SALK-AS - Salk Institute | 2.3K | — | 9 |
| AS36748US | STEDWARDS-ASN1 - St. Edwards University | 2.3K | — | 6 |
| AS18569US | COMSPECO-NET-1 - COMMUNICATION SPECIALISTS | 2.3K | — | 6 |
| AS393341US | SPOKANE-COUNTY - Spokane County | 2.3K | 1 | 3 |
| AS20314US | ISP-ROUTER - Conagra Brands Inc. | 2.3K | — | 7 |
| AS22511US | PRESIDIONS - Presidio Networked Solutions LLC | 2.3K | — | 9 |
| AS54225US | OCF - ORANGE COUNTY FIBER LLC | 2.3K | 65.5K | 3 |
| AS54588US | EQUINIX-EC-SV - Equinix, Inc. | 2.3K | 1 | 9 |
| AS1929US | UMASSNET-NET - University of Massachusetts - AMHERST | 2.3K | 16 | 6 |
| AS394353US | BROOT-AS - B.Root-Server-OPS | 2.3K | 44 | 21 |
| AS31770US | CMMC-I2 - Ann & Robert H. Lurie Children's Hospital of Chicago | 2.3K | — | 9 |
| AS33741US | DENNIS-GROUP - Dennis Group | 2.3K | 276 | 9 |
| AS402267US | HADOOPSKY - Hadoopsky LLC | 2.3K | — | 9 |
| AS40351US | AS-PLDPC - Pennsylvania Legislative Data Processing Center | 2.3K | — | 9 |
| AS26718US | WOLVERINE-TRADING-TECHNOLOGIES-LLC - WOLVERINE TRADING TECHNOLOGIES, LLC | 2.3K | — | 9 |
| AS36215US | TYSON-SHARED-SERVICES - Tyson Shared Services, Inc. | 2.3K | — | 5 |
| AS27200US | SOCIETY-OF-AUTOMOTIVE-ENGINEERS - Society of Automotive Engineers | 2.3K | — | 2 |
| AS4954US | CARR - Carroll County Government | 2.3K | — | 6 |
| AS63383US | SINGLE-DIGITS - Single Digits, Inc. | 2.3K | — | 9 |
| AS23038US | BRDBND-USER-GRP - City of Hillsboro | 2.3K | — | 2 |
| AS402219US | UNION-RIVER-TEL - The Union River Telephone Company | 2.3K | 65.5K | 3 |
| AS71US | HPINC-AMERICAS - HP Inc. | 2.3K | 2 | 11 |
| AS25896US | IPC-NETWORK-SERVICES-INC - IPC Network Services Inc. | 2.3K | — | 9 |
| AS40943US | RURALBROADBAND - Rural Broadband, L.L.C. | 2.3K | 65.5K | 4 |
| AS393359US | SSFCU-AS-2 - Security Service Federal Credit Union | 2.3K | — | 5 |
| AS26664US | BECU - BECU | 2.3K | — | 9 |
| AS22326US | DRHORTON - D.R.Horton, Inc | 2.3K | — | 7 |
| AS23172US | PENTAGONFEDERALCU - Pentagon Federal Credit Union | 2.3K | — | 8 |
| AS22883US | CONDENAST - CondeNast Publications | 2.3K | — | 9 |