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.

Pharr, TX

<< 1 2 3 4

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
956-961 3 HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2007-03-04   
956-961 4 HRLNTXHGXYX  793K TWC IP ENABLED SERVICES, LLC 568   2007-01-19   
956-961 5 HRLNTXKX8MD  5562 METROPCS, INC. 568   2007-02-14   
956-961 6 HRLNTXKX8MD  5562 METROPCS, INC. 568   2007-02-14   
956-961 7 HRLNTXKX8MD  5562 METROPCS, INC. 568   2006-11-30   
956-961 8 HRLNTXKX8MD  5562 METROPCS, INC. 568   2006-11-30   
956-961 9 HRLNTXKX8MD  5562 METROPCS, INC. 568   2006-07-28   

<< 1 2 3 4

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.