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: 456

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
678-456 A Cumming GA   8392 TELEPORT COMMUNICATIONS AMERICA, LLC - GA 438      
678-456 0 Cumming GA   145J TERRA NOVA TELECOM INC. 438      
678-456 1 Cumming GA   8392 TELEPORT COMMUNICATIONS AMERICA, LLC - GA 438      
678-456 2 Cumming GA NRCSGAGZ5MD  5562 METROPCS, INC. 438      
678-456 3 Cumming GA   7435 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA 438      
678-456 4 Cumming GA ATLNGAHPDS8  6116 LEVEL 3 COMMUNICATIONS, LLC - GA 438      
678-456 5 Cumming GA ATLNGAHPDS8  6116 LEVEL 3 COMMUNICATIONS, LLC - GA 438      
678-456 6 Cumming GA   829J PAETEC ITEL, LLC 438      
678-456 7 Cumming GA   829J PAETEC ITEL, LLC 438      
678-456 8 Cumming GA ATLNGAEPXOY  318J COMCAST IP PHONE, LLC 438      
678-456 9 Cumming GA   829J PAETEC ITEL, LLC 438      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.