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: 319 [Rate centres in NPA 319] [Dial plan for NPA 319]

NXX: 431

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
319-431 A Cedar Rapids IA CDRRIAAX7MD  6529 T-MOBILE USA, INC. 635      
319-431 0 Cedar Rapids IA CDRRIAAX7MD  5562 METROPCS, INC. 635      
319-431 1 Cedar Rapids IA CDRRIAAX7MD  6529 T-MOBILE USA, INC. 635      
319-431 2 Cedar Rapids IA CDRRIAAX7MD  5562 METROPCS, INC. 635      
319-431 3 Cedar Rapids IA CDRRIAAX7MD  5562 METROPCS, INC. 635      
319-431 4 Cedar Rapids IA CDRRIAAX7MD  5562 METROPCS, INC. 635      
319-431 5 Cedar Rapids IA CDRRIAAX7MD  5562 METROPCS, INC. 635      
319-431 6 Cedar Rapids IA CDRRIAAX7MD  5562 METROPCS, INC. 635      
319-431 7 Cedar Rapids IA CDRRIAAX7MD  6529 T-MOBILE USA, INC. 635      
319-431 8 Cedar Rapids IA CDRRIAAX7MD  5562 METROPCS, INC. 635      
319-431 9 Cedar Rapids IA CDRRIAAX7MD  5562 METROPCS, INC. 635      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.