Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 209 [Rate centres in NPA 209] [Dial plan for NPA 209]

NXX: 543

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
209-543 A Modesto CA MDSTCA04RS0  9740 PACIFIC BELL 738      
209-543 0 Modesto CA   9740 PACIFIC BELL 738      
209-543 1 Modesto CA   9740 PACIFIC BELL 738      
209-543 2 Modesto CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2005-09-19   
209-543 3 Modesto CA   9740 PACIFIC BELL 738      
209-543 4 Modesto CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2005-09-19   
209-543 5 Modesto CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2005-09-19   
209-543 6 Modesto CA   9740 PACIFIC BELL 738      
209-543 7 Modesto CA   9740 PACIFIC BELL 738      
209-543 8 Modesto CA   9740 PACIFIC BELL 738      
209-543 9 Modesto CA   9740 PACIFIC BELL 738      

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

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