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: 424

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
334-424 A Holtville AL MTGMALIR7MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 478      
334-424 0 Holtville AL MTGMALIR7MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 478   2004-03-11   
334-424 1 Holtville AL MTGMALMTX9Z  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 478   2004-11-11   
334-424 2 Holtville AL MTGMALIR7MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 478   2006-01-27   
334-424 3 Holtville AL MTGMAL100MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 478   2005-09-29   
334-424 4 Holtville AL MTGMALIR7MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 478   2006-06-15   
334-424 5 Holtville AL MTGMAL13X4X  5562 METROPCS, INC. 478   2013-06-15   
334-424 6 Holtville AL MTGMAL13X4X  5562 METROPCS, INC. 478   2013-07-22   
334-424 7 Holtville AL MTGMAL13X4X  5562 METROPCS, INC. 478   2013-08-01   
334-424 8 Holtville AL MTGMAL13X4X  5562 METROPCS, INC. 478   2013-08-15   
334-424 9 Holtville AL MTGMALIR7MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 478   2004-03-11   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.