24 Hour Fitness Share: Fitness 24 Hour Fitness 10400 Sepulveda Blvd. Mission Hills, CA 91345 (888) 243-5002 Rep Info Map Whom to Contact Marco Ceceña 10400 Sepulveda Blvd. Mission Hills, CA 91345 Phone: (888) 243-5002 Send an Email What's Nearby? Distance: 5 10 15 20 25 50 mi.