The arena that hosted the 2017 "Billboard" Music Awards opened  on what date?
2017 Billboard Music Awards The 2017 "Billboard" Music Awards was held at the T-Mobile Arena in Las Vegas on May 21, 2017. The list of nominees was announced on April 10, 2017. Non-televised awards were announced on "Billboard" website the same day as the main ceremony.
Mobile Civic Center Mobile Civic Center (formerly Mobile Municipal Auditorium) is a multi-purpose arena located in Mobile, Alabama. Owned by the City of Mobile and operated by SMG, the arena comprises three venues: a theater, an expo hall, and an arena. It is suitable for large indoor events including sporting events and trade shows. The theater has seating for 1,940, while the expo hall can seat 3,000. The largest venue of the Mobile Civic Center is the arena, which can seat 10,112.