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.

Switch: LFYTLA368MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
337-315 5 Lafayette LA 145J TERRA NOVA TELECOM INC. 488   2026-04-30   
337-338 0 Welsh LA 145J TERRA NOVA TELECOM INC. 488   2026-01-04   
337-346 1 Franklin LA 145J TERRA NOVA TELECOM INC. 488   2026-03-29   
337-370 8 Jennings LA 145J TERRA NOVA TELECOM INC. 488   2026-07-06   
337-389 1 Oberlin LA 145J TERRA NOVA TELECOM INC. 488   2026-01-04   
337-465 5 New Iberia LA 145J TERRA NOVA TELECOM INC. 488   2026-04-30   
337-465 7 New Iberia LA 145J TERRA NOVA TELECOM INC. 488   2025-08-29   
337-799 A Lafayette LA 145J TERRA NOVA TELECOM INC. 488      

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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