Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 520 [Rate centres in NPA 520] [Dial plan for NPA 520]

NXX: 763

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-763 A Casa Grande AZ   6529 T-MOBILE USA, INC. 666   2025-09-05   
520-763 7 Casa Grande AZ   6529 T-MOBILE USA, INC. 666   2025-09-05   
520-763 8 Casa Grande AZ   6529 T-MOBILE USA, INC. 666   2025-09-05   
520-763 9 Casa Grande AZ   6529 T-MOBILE USA, INC. 666   2025-09-05   

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

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