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.
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Switch: AMRLTXOSRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
806-622 A Amarillo TX 9533 SOUTHWESTERN BELL 546      
806-622 0 Amarillo TX 9533 SOUTHWESTERN BELL 546      
806-622 1 Amarillo TX 9533 SOUTHWESTERN BELL 546      
806-622 2 Amarillo TX 9533 SOUTHWESTERN BELL 546      
806-622 3 Amarillo TX 9533 SOUTHWESTERN BELL 546      
806-622 4 Amarillo TX 9533 SOUTHWESTERN BELL 546      
806-622 8 Amarillo TX 9533 SOUTHWESTERN BELL 546      
806-622 9 Amarillo TX 9533 SOUTHWESTERN BELL 546      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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