Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

NXX: 440

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-440 A Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2026-08-13   
737-440 0 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2026-08-13   
737-440 1 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2026-08-13   
737-440 2 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2026-08-13   
737-440 3 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2026-08-13   
737-440 4 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2026-08-13   
737-440 5 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2026-08-13   
737-440 6 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2026-08-13   
737-440 7 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2026-08-13   
737-440 8 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2026-08-13   
737-440 9 Austin TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2026-08-13   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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