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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Switch: SKTOCAOY6MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
350-355 8 Stockton CA 6529 T-MOBILE USA, INC. 738   2024-03-09   
350-355 9 Stockton CA 6529 T-MOBILE USA, INC. 738   2024-03-09   
350-500 6 Atwater CA 6529 T-MOBILE USA, INC. 738   2024-02-22   
350-500 7 Atwater CA 6529 T-MOBILE USA, INC. 738   2024-02-22   
350-500 8 Atwater CA 6529 T-MOBILE USA, INC. 738   2024-02-22   
350-750 2 Sonora: Main DA CA 6529 T-MOBILE USA, INC. 738   2025-01-20   
350-750 3 Sonora: Main DA CA 6529 T-MOBILE USA, INC. 738   2025-01-20   
350-750 7 Sonora: Main DA CA 6529 T-MOBILE USA, INC. 738   2024-09-27   
350-930 1 Turlock CA 6529 T-MOBILE USA, INC. 738   2024-01-20   

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

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