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: 757

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-757 A Carencro LA LFYTLAMAXCZ  515J IP HORIZON LLC 488   2024-05-20   
337-757 0 Carencro LA   749E ONVOY, LLC - LA 488   2024-05-22   
337-757 1 Carencro LA   515J IP HORIZON LLC 488   2024-05-20   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.