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: MCALTX96HMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-202 8 Harlingen TX 7399 WESTEL, INC. - TX 568   2008-04-13   
956-219 0 Edinburg TX 7399 WESTEL, INC. - TX 568   2008-03-31   
956-247 3 San Benito TX 7399 WESTEL, INC. - TX 568   2009-12-14   
956-254 1 Los Fresnos TX 7399 WESTEL, INC. - TX 568   2009-12-14   
956-354 0 Pharr TX 7399 WESTEL, INC. - TX 568   2008-03-31   
956-377 3 Donna TX 7399 WESTEL, INC. - TX 568   2009-12-14   
956-391 0 Mission TX 7399 WESTEL, INC. - TX 568   2008-04-04   
956-524 9 Port Isabel TX 7399 WESTEL, INC. - TX 568   2009-12-14   
956-755 1 Brownsville TX 7399 WESTEL, INC. - TX 568   2009-12-14   
956-776 A McAllen TX 7399 WESTEL, INC. - TX 568      
956-776 0 McAllen TX 7399 WESTEL, INC. - TX 568   2006-12-01   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.