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: 604

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
678-604 A Atlanta South GA ATLNGABU22Z  829J PAETEC ITEL, LLC 438      
678-604 0 Atlanta South GA ATLNGABU22Z  829J PAETEC ITEL, LLC 438      
678-604 1 Atlanta South GA STBRGANH47C  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 438   2006-03-16   
678-604 2 Atlanta South GA STBRGANH47C  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 438   2006-03-16   
678-604 3 Atlanta South GA STBRGANH47C  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 438   2006-03-16   
678-604 4 Atlanta South GA STBRGANH47C  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 438   2006-03-16   
678-604 5 Atlanta South GA STBRGANH47C  9417 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 438   2006-03-16   
678-604 6 Atlanta South GA ATLNGAEPXOY  318J COMCAST IP PHONE, LLC 438   2013-09-29   
678-604 7 Atlanta South GA ATLNGAEPXOY  318J COMCAST IP PHONE, LLC 438   2013-09-16   
678-604 8 Atlanta South GA ATLNGAQSDS3  7435 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 438   2011-02-04   
678-604 9 Atlanta South GA ATLNGABU22Z  829J PAETEC ITEL, LLC 438      

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.