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: 940

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-940 A Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-940 0 Tucson AZ TCSMAZOI3MD  5562 METROPCS, INC. 668      
520-940 1 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-940 2 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-940 3 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-940 4 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-940 5 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-940 6 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-940 7 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-940 8 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668      
520-940 9 Tucson AZ TCSMAZOI3MD  5562 METROPCS, INC. 668   2014-09-05   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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