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: 704 [Rate centres in NPA 704] [Dial plan for NPA 704]

NXX: 323

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
704-323 A Charlotte NC CHRLNCRL3MD  3235 LEVEL 3 COMMUNICATIONS, LLC - NC 422      
704-323 0 Charlotte NC   8645 SUNCOM DBA T-MOBILE USA 422   2004-12-17   
704-323 1 Charlotte NC   8645 SUNCOM DBA T-MOBILE USA 422   2004-12-17   
704-323 2 Charlotte NC   7858 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 422   2004-12-03   
704-323 3 Charlotte NC   7858 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 422   2004-12-03   
704-323 4 Charlotte NC   7858 LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 422   2006-03-25   
704-323 5 Charlotte NC   3235 LEVEL 3 COMMUNICATIONS, LLC - NC 422   2005-01-03   
704-323 6 Charlotte NC   998E BANDWIDTH.COM CLEC, LLC - NC 422   2010-11-21   
704-323 7 Charlotte NC   3235 LEVEL 3 COMMUNICATIONS, LLC - NC 422   2005-01-03   
704-323 8 Charlotte NC   3235 LEVEL 3 COMMUNICATIONS, LLC - NC 422   2005-01-03   
704-323 9 Charlotte NC   8645 SUNCOM DBA T-MOBILE USA 422   2005-04-23   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.