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.

Catherine, AL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
334-225 A CTHRALXARS0  4464 FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL 478      
334-594 A   5255 LEVEL 3 COMMUNICATIONS, LLC - AL 478      
334-594 0 MTGMALMT55Z  624H ONVOY SPECTRUM, LLC 478   2023-06-26   
334-594 2 MTGMALMTXTZ  604E ONVOY, LLC - AL 478   2021-07-30   
334-594 3 MTGMALMTXTZ  604E ONVOY, LLC - AL 478   2021-03-15   
334-594 4 MTGMALMTXTZ  604E ONVOY, LLC - AL 478   2019-08-25   
334-594 7   5255 LEVEL 3 COMMUNICATIONS, LLC - AL 478   2018-02-01   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.