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: 919 [Rate centres in NPA 919] [Dial plan for NPA 919]

NXX: 434

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
919-434 A Cary NC RLGHNCHO24Z  8645 SUNCOM DBA T-MOBILE USA 426      
919-434 0 Cary NC RLGHNCHO24Z  8645 SUNCOM DBA T-MOBILE USA 426   2010-10-15   
919-434 1 Cary NC RLGHNCHO24Z  8645 SUNCOM DBA T-MOBILE USA 426      
919-434 2 Cary NC RLGHNCHO24Z  8645 SUNCOM DBA T-MOBILE USA 426   2010-10-15   
919-434 3 Cary NC RLGHNCHO24Z  8645 SUNCOM DBA T-MOBILE USA 426      
919-434 4 Cary NC RLGHNCHO24Z  8645 SUNCOM DBA T-MOBILE USA 426      
919-434 5 Cary NC RLGHNCHO24Z  8645 SUNCOM DBA T-MOBILE USA 426      
919-434 6 Cary NC RLGHNCHO24Z  8645 SUNCOM DBA T-MOBILE USA 426      
919-434 7 Cary NC RLGHNCHO24Z  8645 SUNCOM DBA T-MOBILE USA 426      
919-434 8 Cary NC RLGHNCHO24Z  8645 SUNCOM DBA T-MOBILE USA 426      
919-434 9 Cary NC RLGHNCHO24Z  8645 SUNCOM DBA T-MOBILE USA 426      

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.