Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 559 [Rate centres in NPA 559] [Dial plan for NPA 559]

NXX: 788

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-788 A Porterville CA PTVLCA11DS0  9740 PACIFIC BELL 728      
559-788 0 Porterville CA   9740 PACIFIC BELL 728      
559-788 1 Porterville CA   9740 PACIFIC BELL 728      
559-788 2 Porterville CA   9740 PACIFIC BELL 728      
559-788 3 Porterville CA   9740 PACIFIC BELL 728      
559-788 4 Porterville CA   9740 PACIFIC BELL 728      
559-788 5 Porterville CA   9740 PACIFIC BELL 728      
559-788 6 Porterville CA   9740 PACIFIC BELL 728      
559-788 7 Porterville CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728      
559-788 8 Porterville CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728      
559-788 9 Porterville CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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