Local Calling Guide

Area code/prefix search

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NPA: 770 [Rate centres in NPA 770] [Dial plan for NPA 770]

NXX: 657

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
770-657 A Atlanta Northwest GA ATLNGABUXXY  8392 TELEPORT COMMUNICATIONS AMERICA, LLC - GA 438      
770-657 0 Atlanta Northwest GA ATLNGAEPXCY  7473 POWERTEL ATLANTA LICENSES, INC. 438   2024-12-12   
770-657 1 Atlanta Northwest GA ATLNGABUXXY  8392 TELEPORT COMMUNICATIONS AMERICA, LLC - GA 438      
770-657 2 Atlanta Northwest GA   490J DISH WIRELESS, LLC 438   2025-04-24   
770-657 3 Atlanta Northwest GA ATLNGABU05Z  624H ONVOY SPECTRUM, LLC 438   2020-06-26   
770-657 4 Atlanta Northwest GA ATLNGABUXXY  8392 TELEPORT COMMUNICATIONS AMERICA, LLC - GA 438   2007-10-28   
770-657 5 Atlanta Northwest GA ATLNGABUXXY  8392 TELEPORT COMMUNICATIONS AMERICA, LLC - GA 438   2007-10-28   
770-657 6 Atlanta Northwest GA SMYRGAPF95C  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 438   2003-09-21   
770-657 7 Atlanta Northwest GA   067D ONVOY, LLC - GA 438   2025-09-05   
770-657 8 Atlanta Northwest GA ATLNGAEPXCY  7473 POWERTEL ATLANTA LICENSES, INC. 438   2024-12-12   
770-657 9 Atlanta Northwest GA ATLNGABUXXY  8392 TELEPORT COMMUNICATIONS AMERICA, LLC - GA 438      

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

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