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: HRLNTXKX8MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-975 8 Weslaco TX 4290 STPCS JOINT VENTURE, LLC 568   2003-11-26   
956-984 8 McAllen TX 4290 STPCS JOINT VENTURE, LLC 568   2006-06-25   
956-984 9 McAllen TX 4290 STPCS JOINT VENTURE, LLC 568   2004-04-12   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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