Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 610 [Rate centres in NPA 610] [Dial plan for NPA 610]

NXX: 638

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
610-638 A Philadelphia Suburban Zone 17 PA PHLAPAFGD0S  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 228      
610-638 0 Philadelphia Suburban Zone 17 PA PHLAPAFGD2S  547E ONVOY, LLC - PA 228   2016-10-29   
610-638 1 Philadelphia Suburban Zone 17 PA PHLAPAFGD0S  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 228      
610-638 2 Philadelphia Suburban Zone 17 PA PHLAPAFGD2S  547E ONVOY, LLC - PA 228   2016-10-29   
610-638 3 Philadelphia Suburban Zone 17 PA   3806 CORE COMMUNICATIONS, INC. - PA 228   2018-06-09   
610-638 4 Philadelphia Suburban Zone 17 PA   3806 CORE COMMUNICATIONS, INC. - PA 228   2018-06-09   
610-638 5 Philadelphia Suburban Zone 17 PA   3806 CORE COMMUNICATIONS, INC. - PA 228   2018-06-09   
610-638 6 Philadelphia Suburban Zone 17 PA PHLAPAFGD2S  547E ONVOY, LLC - PA 228   2019-12-09   
610-638 7 Philadelphia Suburban Zone 17 PA PHLAPAFGD2S  547E ONVOY, LLC - PA 228   2019-12-09   
610-638 8 Philadelphia Suburban Zone 17 PA WNRTPAAHCMA  6664 SPRINT SPECTRUM, L.P. 228   2014-11-10   
610-638 9 Philadelphia Suburban Zone 17 PA WNRTPAAHCMA  6664 SPRINT SPECTRUM, L.P. 228   2013-10-22   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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