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: 637

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-637 A Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666      
520-637 0 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2021-05-03   
520-637 1 Casa Grande AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2021-04-05   
520-637 2 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2021-05-03   
520-637 3 Casa Grande AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2022-08-19   
520-637 4 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2021-05-03   
520-637 5 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2021-05-03   
520-637 6 Casa Grande AZ PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2021-02-21   
520-637 7 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2021-02-20   
520-637 8 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2021-02-20   
520-637 9 Casa Grande AZ TEMPAZNR5MD  6529 T-MOBILE USA, INC. 666   2021-02-20   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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