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: PLVWTXPVDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
806-221 A Plainview TX 9533 SOUTHWESTERN BELL 544      
806-221 0 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-221 4 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-221 5 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-221 6 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-221 7 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-221 8 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-221 9 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-291 A Plainview TX 9533 SOUTHWESTERN BELL 544      
806-291 0 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-291 1 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-291 2 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-291 3 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-291 4 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-291 5 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-291 6 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-291 8 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-291 9 Plainview TX 9533 SOUTHWESTERN BELL 544      
806-293 A Plainview TX 9533 SOUTHWESTERN BELL 544      
806-296 A Plainview TX 9533 SOUTHWESTERN BELL 544      
806-494 A Plainview TX 9533 SOUTHWESTERN BELL 544      
806-494 0 Plainview TX 9533 SOUTHWESTERN BELL 544      

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

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