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: ELPUTXSRGT0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
915-271 3 El Paso TX 679E TRANSTELCO, INC. - TX 540   2016-12-03   
915-283 0 El Paso TX 679E TRANSTELCO, INC. - TX 540   2016-12-03   
915-400 A El Paso TX 679E TRANSTELCO, INC. - TX 540      
915-400 0 El Paso TX 679E TRANSTELCO, INC. - TX 540   2012-05-24   
915-400 2 El Paso TX 679E TRANSTELCO, INC. - TX 540   2011-02-28   
915-400 3 El Paso TX 679E TRANSTELCO, INC. - TX 540   2012-05-25   
915-701 0 El Paso TX 679E TRANSTELCO, INC. - TX 540   2014-02-20   
915-730 3 El Paso TX 679E TRANSTELCO, INC. - TX 540   2012-06-08   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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