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: SHPTLAMAXMZ

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
318-437 A Ferriday LA 516C AT&T CORP. 486      
318-568 A Dry Prong LA 516C AT&T CORP. 486      
318-625 A Alexandria LA 516C AT&T CORP. 486      
318-626 A Shreveport LA 516C AT&T CORP. 486      
318-702 A Coushatta LA 516C AT&T CORP. 486      
318-839 A Grand Cane LA 516C AT&T CORP. 486   2024-09-30   
318-845 A Harrisonburg LA 516C AT&T CORP. 486   2024-09-30   
318-849 A Lisbon LA 516C AT&T CORP. 486   2024-09-30   
318-851 A Saline LA 516C AT&T CORP. 486   2024-09-30   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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