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: HRLNTXATXMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-268 A McAllen TX 6630 USA MOBILITY WIRELESS, INC. 568      
956-288 A Edinburg TX 6630 USA MOBILITY WIRELESS, INC. 568      
956-623 A McAllen TX 6630 USA MOBILITY WIRELESS, INC. 568      
956-767 A Harlingen TX 6630 USA MOBILITY WIRELESS, INC. 568      
956-768 A Brownsville TX 6630 USA MOBILITY WIRELESS, INC. 568      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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