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: 337 [Rate centres in NPA 337] [Dial plan for NPA 337]

NXX: 545

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-545 A Centerville LA LFYTLAMAX3Y  653C TELEPORT COMMUNICATIONS AMERICA LA - LLC 488      
337-545 0 Centerville LA LFYTLAMAX7Z  624H ONVOY SPECTRUM, LLC 488      
337-545 1 Centerville LA LFYTLA364MD  939H COMMIO, LLC 488      
337-545 2 Centerville LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488      
337-545 3 Centerville LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488      
337-545 4 Centerville LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488      
337-545 5 Centerville LA LFYTLAMAX5X  3232 LEVEL 3 COMMUNICATIONS, LLC - LA 488      
337-545 6 Centerville LA LFYTLAMAX3Y  653C TELEPORT COMMUNICATIONS AMERICA LA - LLC 488      
337-545 7 Centerville LA LFYTLA364MD  939H COMMIO, LLC 488      
337-545 8 Centerville LA LFYTLA364MD  939H COMMIO, LLC 488      
337-545 9 Centerville LA LFYTLA364MD  939H COMMIO, LLC 488      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.