Local Calling Guide

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NPA: 610 [Rate centres in NPA 610] [Dial plan for NPA 610]

NXX: 387

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
610-387 A Philadelphia Suburban Zone 10 PA PHLAPAAZDS2  7309 TELEPORT COMMUNICATIONS AMERICA, LLC - PA 228      
610-387 0 Philadelphia Suburban Zone 10 PA   3806 CORE COMMUNICATIONS, INC. - PA 228   2018-10-26   
610-387 1 Philadelphia Suburban Zone 10 PA PHLAPASL0MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2024-08-10   
610-387 2 Philadelphia Suburban Zone 10 PA PHLAPAAZDS2  7309 TELEPORT COMMUNICATIONS AMERICA, LLC - PA 228      
610-387 3 Philadelphia Suburban Zone 10 PA PHLAPAAZDS2  7309 TELEPORT COMMUNICATIONS AMERICA, LLC - PA 228      
610-387 4 Philadelphia Suburban Zone 10 PA PHLAPAAZDS2  7309 TELEPORT COMMUNICATIONS AMERICA, LLC - PA 228      
610-387 5 Philadelphia Suburban Zone 10 PA PHLAPASL0MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2020-03-29   
610-387 6 Philadelphia Suburban Zone 10 PA KGPRPADODS0  7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 228   2008-08-15   
610-387 7 Philadelphia Suburban Zone 10 PA WNRTPAAHCMA  5562 METROPCS, INC. 228   2015-01-09   
610-387 8 Philadelphia Suburban Zone 10 PA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2025-08-22   
610-387 9 Philadelphia Suburban Zone 10 PA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228   2025-08-22   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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