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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,138 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,674 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,417 |
| SECURITIESAMERICA - Securities America Inc. |
| 256 |
| 1 |
| 2 |
| AS14505US | ISLC - ISLC, Inc. | 256 | — | 1 |
| AS22350US | ECMD - ECMD INC. | 256 | — | 1 |
| AS15306US | WALSWORTH-FULTON - WALSWORTH PUBLISHING COMPANY | 256 | — | 1 |
| AS398039US | CENTRIS-ASN-01 - Centris Federal Credit Union | 256 | — | 1 |
| AS53918US | HHRL-ASN - Host Hotels and Resorts, L.P. | 256 | — | 1 |
| AS395642US | MOZILLA-TOR1 - Mozilla Corporation | 256 | 1 | 2 |
| AS396833US | LASELLCOLLEGE - Lasell University | 256 | — | 1 |
| AS395595US | NSG-LR - Network Services Group, Inc. | 256 | — | 1 |
| AS46585US | JFKIAT-LLC - JFK International Air Terminal LLC | 256 | — | 1 |
| AS399212US | GFBMIC - GEORGIA FARM BUREAU MUTUAL INSURANCE COMPANY | 256 | — | 1 |
| AS27215US | DIAGNOSTIC-IMAGING-ASSOCIATES-INC - Diagnostic Imaging Associates, Inc. | 256 | — | 1 |
| AS396345US | FOXGUARD-SOLUTIONS-INC - FoxGuard Solutions, Inc. | 256 | — | 1 |
| AS29936US | THD-TMC-8750 - Telluride Medical Center | 256 | — | 1 |
| AS395178US | RED-VENTURES - Red Ventures, LLC | 256 | — | 1 |
| AS394600US | MZCORP - AppLovin Corporation | 256 | 1 | 2 |
| AS401201US | RENO-TAHOE-AIRPORT-AUTHORITY - Reno-Tahoe Airport Authority | 256 | — | 1 |
| AS393281US | HB2000 - City of Huntington Beach | 256 | — | 1 |
| AS394517US | KNOLL-INC - MillerKnoll, Inc. | 256 | — | 1 |
| AS1700US | RICE-AS1700 - Rice University | 256 | — | 1 |
| AS397661US | PILLEN-OFFICE-01 - Pillen Family Farms, Inc. | 256 | — | 1 |
| AS400129US | GMI-AS - Graphic Magic, Inc. | 256 | 4.1K | 2 |
| AS26262US | RWIFI-AS01 - Circle City Internet | 256 | 256 | 2 |
| AS17125US | LOGIS-ASN-01 - Logistics Plus, Inc. | 256 | — | 1 |
| AS25777US | AS25777 - Subaru of New England, Inc. | 256 | — | 1 |
| AS394103US | AS-PINN - Pinnacle Associates, LTD | 256 | — | 1 |
| AS397039US | WORLDSTRIDES - WorldStrides | 256 | — | 1 |
| AS21805US | MRHAMEL - Ryan Hamel | 256 | 512 | 3 |
| AS397426US | WILSON-HEALTH - Wilson Health | 256 | — | 1 |
| AS1622US | NCHAS - NCH Capital Inc. | 256 | — | 1 |
| AS14073US | NEXTJUMPINC - Next Jump, Inc. | 256 | — | 1 |
| AS395175US | HEIDENTECH - Heiden Technology Solutions | 256 | — | 1 |
| AS393871US | HAVAS-USA-E-DC - Havas Health, Inc. | 256 | — | 1 |
| AS398545US | COUNTY-OF-VOLUSIA - County of Volusia | 256 | — | 1 |
| AS26060US | ECS - ECS Tuning, LLC | 256 | — | 1 |
| AS393826US | AS-IMAGINESOFTWARE - IMAGINE SOFTWARE INC | 256 | — | 1 |
| AS63487US | FELLOWES-ASN - Fellowes Inc. | 256 | — | 1 |
| AS398783US | SLICE - Slice Wireless Solutions, Inc. | 256 | — | 1 |
| AS36293US | NHVAS - North Hunterdon-Voorhees Regional High School District | 256 | — | 1 |
| AS394204US | FULTONFINANCIAL-ASN - FULTON FINANCIAL CORPORATION | 256 | — | 1 |
| AS399763US | FIVESTAR-TIERPOINT-01 - Issues Management, Inc. | 256 | — | 1 |
| AS15336US | CONCOR-1 - Concordia University, St. Paul | 256 | — | 1 |
| AS13862US | NCSU-SNARE - North Carolina State University | 256 | — | 1 |
| AS14538US | HEC-NETWORK - Harrisonburg Electric Commission | 256 | — | 1 |
| AS396896US | FERRARA-CANDY-CO - Ferrara Candy Company | 256 | — | 1 |
| AS393859US | MVC-WIRELESS - Mission Valley Communications, LLC. | 256 | — | 1 |
| AS399968US | TKS-DFW-ASN01 - Turnkey Solutions, LLC | 256 | — | 1 |