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: 603

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-603 A Eunice LA SCTTLA06G02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488      
337-603 0 Eunice LA LKCHLADTSMD  153F BANDWIDTH.COM CLEC, LLC - LA 488   2015-11-09   
337-603 1 Eunice LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488   2016-03-28   
337-603 2 Eunice LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488   2016-03-28   
337-603 3 Eunice LA LFYTLA362MD  5562 METROPCS, INC. 488   2017-09-24   
337-603 4 Eunice LA LFYTLAMAX5X  3232 LEVEL 3 COMMUNICATIONS, LLC - LA 488   2017-08-25   
337-603 5 Eunice LA SCTTLA06G02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488   2016-05-28   
337-603 6 Eunice LA LFYTLAMAX3Y  653C TELEPORT COMMUNICATIONS AMERICA LA - LLC 488   2015-08-17   
337-603 7 Eunice LA SCTTLA06G02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488   2016-05-28   
337-603 8 Eunice LA SCTTLA06G02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488   2015-03-08   
337-603 9 Eunice LA SCTTLA06G02  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 488   2015-03-08   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.