Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 570 [Rate centres in NPA 570] [Dial plan for NPA 570]

NXX: 553

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
570-553 A St Joseph PA STJSPAXSRS0  0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-553 0 St Joseph PA   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-553 1 St Joseph PA   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-553 2 St Joseph PA   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-553 3 St Joseph PA   145J TERRA NOVA TELECOM INC. 232   2025-07-21   
570-553 4 St Joseph PA   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-553 5 St Joseph PA   547E ONVOY, LLC - PA 232   2019-12-18   
570-553 9 St Joseph PA   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      

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

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