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: SHPTLAMAX6Y

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
318-987 8 Haughton LA 3232 LEVEL 3 COMMUNICATIONS, LLC - LA 486   2008-05-19   
318-995 3 Oil City LA 3232 LEVEL 3 COMMUNICATIONS, LLC - LA 486   2004-11-15   
318-996 3 Mooringsport LA 3232 LEVEL 3 COMMUNICATIONS, LLC - LA 486   2004-11-15   
318-996 4 Mooringsport LA 3232 LEVEL 3 COMMUNICATIONS, LLC - LA 486   2008-07-25   
318-997 1 Bordelonville LA 3232 LEVEL 3 COMMUNICATIONS, LLC - LA 486   2014-09-19   
430-233 2 Vivian TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 486   2017-10-15   
870-859 7 North Springhill AR 5179 LEVEL 3 COMMUNICATIONS, LLC - AR 486   2022-08-26   

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

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