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: LBCKTXPSXDY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
806-302 A Hale Center TX 516C AT&T CORP. 544      
806-317 A Lubbock TX 516C AT&T CORP. 544      
806-329 A Slaton TX 516C AT&T CORP. 544      
806-475 A Floydada TX 516C AT&T CORP. 544      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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