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.

NPA: 334 [Rate centres in NPA 334] [Dial plan for NPA 334]

NXX: 597

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
334-597 A McKenzie AL MTGMALMTX9Z  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 478      
334-597 0 McKenzie AL DTHNALXAXTX  624H ONVOY SPECTRUM, LLC 478   2024-03-05   
334-597 1 McKenzie AL DTHNALXAXNX  593K MCC TELEPHONY LLC 478   2017-07-24   
334-597 2 McKenzie AL DTHNALXAXQX  604E ONVOY, LLC - AL 478   2021-07-31   
334-597 3 McKenzie AL DTHNALXAXQX  604E ONVOY, LLC - AL 478   2021-03-15   
334-597 5 McKenzie AL DTHNALXAXQX  604E ONVOY, LLC - AL 478   2019-11-07   
334-597 7 McKenzie AL MTGMALMTX9Z  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 478   2013-09-27   
334-597 8 McKenzie AL   045L BHN IP ENABLED SERVICES, LLC 478   2025-08-21   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.