Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 678 [Rate centres in NPA 678] [Dial plan for NPA 678]

NXX: 403

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
678-403 A Atlanta Northwest GA NRCRGAISDS0  8392 TELEPORT COMMUNICATIONS AMERICA, LLC - GA 438      
678-403 0 Atlanta Northwest GA ATLNGAMQDS7  909E PEERLESS NETWORK OF GEORGIA, LLC - GA 438   2013-10-13   
678-403 1 Atlanta Northwest GA ATLNGAEPXOY  318J COMCAST IP PHONE, LLC 438   2007-07-12   
678-403 2 Atlanta Northwest GA ATLNGATLFMD  516C AT&T CORP. 438   2010-04-08   
678-403 3 Atlanta Northwest GA NRCRGAISDS0  8392 TELEPORT COMMUNICATIONS AMERICA, LLC - GA 438      
678-403 4 Atlanta Northwest GA MRTTGAEADS1  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 438   2003-09-21   
678-403 5 Atlanta Northwest GA ATLNGAQSDS8  067D ONVOY, LLC - GA 438   2013-01-09   
678-403 6 Atlanta Northwest GA ATLNGAQSDS8  067D ONVOY, LLC - GA 438   2013-01-09   
678-403 7 Atlanta Northwest GA ATLNGAQSDS8  067D ONVOY, LLC - GA 438   2013-01-09   
678-403 8 Atlanta Northwest GA ATLNGATLFMD  516C AT&T CORP. 438   2013-06-14   
678-403 9 Atlanta Northwest GA ATLNGAQSX5X  6540 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 438   2016-07-16   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.