| Unleash/Web | 1 | | |
| Unreal | 2 | | |
| Upstash | 1 | | |
| Ursa Major | 2 | | |
| US | 34 | | |
| US/CA | 3 | | |
| US/CA/San Francisco | 3 | | |
| US/Coast | 2 | | |
| US/Coast/East | 1 | | |
| US/Coast/West | 1 | | |
| US/Gov | 24 | | |
| US/Gov/ADL/Blog | 1 | | |
| US/Gov/ADL/Blog/21 | 1 | | |
| US/Gov/ADL/Blog/21/07 | 1 | | |
| US/Gov/ADL/GitHub | 1 | | |
| US/Gov/ADL/Report | 1 | | |
| US/Gov/DoD | 1 | | |
| US/MA | 4 | | |
| US/MA/Boston | 1 | | |
| US/MA/Boston/Seaport | 1 | | |
| US/MA/Cambridge | 2 | | |
| US/TX | 1 | | |
| US/TX/Dallas | 1 | | |
| usageCLI/spec | 7 | | |
| USB | 69 | | |
| USB Type-A | 1 | | |
| USB Type-B | 1 | | |
| USB Type-C | 1 | | |
| USB-C | 2 | | |
| USB/A | 1 | | |
| USB/A/Port | 1 | | |
| USB/C | 3 | | |
| USB/C/Port | 1 | | |
| USB/C/Port/Power Only | 1 | | |
| USB/Concept | 1 | | |
| USB/Connector | 54 | | |
| USB/Connector/Ref | 50 | | |
| USB/Connector/Ref/Lightning | 6 | | |
| USB/Connector/Ref/USB-B Micro | 9 | | |
| USB/Connector/Ref/USB-B Mini | 5 | | |