Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

NXX: 405

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-405 A Kyle TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2025-01-17   
737-405 7 Kyle TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2025-01-17   
737-405 8 Kyle TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2025-01-17   
737-405 9 Kyle TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2025-01-17   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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