| USA | Abdominal Ultrasound 
| Others |
| USA | Concord-Padgett Regional Airport
| Others |
| USA | The United States Of Asia
| Others |
| USA | U'll Save Alot
| Others |
| USA | Ubanity Sagacity And Ardency
| Others |
| USA | Udos Standard Ausreden
| Others |
| USA | Ugly Sadism Advocate's
| Others |
| USA | Ultimate Soviet Anihiliation
| Others |
| USA | Ultimate Star Ajithkumar
| Others |
| USA | Ultimate Suspense And Action
| Others |
| USA | Ultra Simplified Acquisition
| Others |
| USA | Unable to Solve Addition
| Others |
| USA | Undedicated Switch Access
| Others |
| USA | Undefeated Southern Army
| Others |
| USA | Under Saudi Arabia
| Others |
| USA | Under Secretary of the Army
| Others |
| USA | Under Skirt Adventures
| Others |
| USA | Under Skirt Area
| Others |
| USA | Underground Service Alert
| Others |
| USA | Underground Service Atlas
| Others |
| USA | Underground Sewer Adapter
| Others |
| USA | Understand Simplify Automate
| Others |
| USA | Underused Stupid Abbreviation
| Others |
| USA | Uneeded and Serious Adiction
| Others |
| USA | Uneven Surface Argument
| Others |
| USA | Unicast Source Address
| Others |
| USA | Unified Shader Architecture
| Others |
| USA | Uniform Securities Act
| Others |
| USA | Union of South Africa
| Others |
| USA | Unionville-Sebewaing Area
| Others |
| USA | United for Size Advocacy
| Others |
| USA | United Scams of America
| Others |
| USA | United Scenic Artists
| Others |
| USA | United Self Assistance
| Others |
| USA | United Selfish of America
| Others |
| USA | United Seniors Association
| Others |
| USA | United Smokers Association
| Others |
| USA | United Soccer Association
| Others |
| USA | United Software Association
| Others |
| USA | United Space Alliance
| Others |
| USA | United Spinal Association
| Others |
| USA | United Stans of Ariana
| Others |
| USA | United States Army
| Others |
| USA | United States Attorney
| Others |
| USA | United States of A**holes
| Others |
| USA | United States of Adultery
| Others |
| USA | United States of Aggression
| Others |
| USA | United States of Aids
| Others |
| USA | United States of America
| Country |
| USA | United States of America (Amerika Birlesik Devletleri)
| Others |
| USA | United States of Asia
| Others |
| USA | United States of Awesome
| Others |
| USA | United Stockgrowers of America
| Others |
| USA | United Student Aid
| Others |
| USA | United Students for Abstinence
| Others |
| USA | United Supermarkets Arena
| Others |
| USA | Universal Standard Assurance
| Others |
| USA | Universal Surveillance for All
| Others |
| USA | Université Sainte-Anne
| Others |
| USA | University of South Alabama
| Others |
| USA | University of South Asia
| Others |
| USA | University of Southern Alabama
| Others |
| USA | University of St Augustine
| Others |
| USA | Unix Systems Administration
| Others |
| USA | Unlimited Savings Allowance
| Others |
| USA | Unlimited Supply of Arrogance
| Others |
| USA | Upper Stage Adapter
| Others |
| USA | Usb Serial Adapter
| Others |
| USA | User Support Analyst
| Others |
| USA | Utterly Savage Anarchy
| Others |