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.

OCN: 0155 MATRIX TELECOM, INC DBA TRINSIC COMMUNICATIONS-GA

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
678-799 A Atlanta GA ATLNGAMQBB8  438      
678-799 3 Atlanta GA ATLNGAMQBB8  438   2003-12-08   

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.