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.

Calcasieu, LA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
318-304 A ALXNLAMA1MD  6922 MTPCS, LLC 486      
318-304 2 SHPTLAMAXZY  749E ONVOY, LLC - LA 486   2023-01-09   
318-304 3 SHPTLAMAXZY  749E ONVOY, LLC - LA 486   2023-03-18   
318-304 8 SHPTLAMAXZY  749E ONVOY, LLC - LA 486   2023-09-28   
318-304 9 SHPTLAMA02Z  624H ONVOY SPECTRUM, LLC 486   2023-07-14   
318-659 A CLCSLAXARS1  0434 CENTURYLINK OF LOUISIANA, LLC 486      
318-659 0 CLCSLAXARS1  0434 CENTURYLINK OF LOUISIANA, LLC 486      
318-659 1 CLCSLAXARS1  0434 CENTURYLINK OF LOUISIANA, LLC 486      
318-659 2 CLCSLAXARS1  0434 CENTURYLINK OF LOUISIANA, LLC 486      
318-659 3 CLCSLAXARS1  0434 CENTURYLINK OF LOUISIANA, LLC 486      
318-659 4 CLCSLAXARS1  0434 CENTURYLINK OF LOUISIANA, LLC 486      
318-659 5 SHPTLAMAXZY  749E ONVOY, LLC - LA 486   2018-11-06   
318-659 6 CLCSLAXARS1  0434 CENTURYLINK OF LOUISIANA, LLC 486      
318-659 7 SHPTLAMAX6Y  3232 LEVEL 3 COMMUNICATIONS, LLC - LA 486   2014-10-06   
318-659 8 SHPTLAMAXZY  749E ONVOY, LLC - LA 486   2019-03-30   
318-659 9 CLCSLAXARS1  0434 CENTURYLINK OF LOUISIANA, LLC 486      

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.