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

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
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   

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Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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