According to our records, this business is located at 1550 S Milliken Ave. in Ontario (in San Bernardino County), California 91761, the location GPS coordinates are: 34.0451828 (latitude), -117.5589683 (longitude). T Mobile is categorized under Beepers (SIC code 4812). Current estimates show that the unit has a sales volume of $2,028,000 and staff of approximately 6 people. You can contact the company by phone at (909) 390-3019.