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: ELPSTXSEDS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
915-783 8 El Paso TX 9533 SOUTHWESTERN BELL 540      
915-783 9 El Paso TX 9533 SOUTHWESTERN BELL 540      
915-843 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-843 2 El Paso TX 9533 SOUTHWESTERN BELL 540      
915-843 4 El Paso TX 9533 SOUTHWESTERN BELL 540      
915-880 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-881 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-881 0 El Paso TX 9533 SOUTHWESTERN BELL 540      
915-881 1 El Paso TX 9533 SOUTHWESTERN BELL 540      
915-881 2 El Paso TX 9533 SOUTHWESTERN BELL 540      
915-881 5 El Paso TX 9533 SOUTHWESTERN BELL 540      
915-881 6 El Paso TX 9533 SOUTHWESTERN BELL 540      
915-881 8 El Paso TX 9533 SOUTHWESTERN BELL 540      
915-887 A El Paso TX 9533 SOUTHWESTERN BELL 540      
915-887 0 El Paso TX 9533 SOUTHWESTERN BELL 540      
915-887 2 El Paso TX 9533 SOUTHWESTERN BELL 540      
915-887 3 El Paso TX 9533 SOUTHWESTERN BELL 540      
915-887 5 El Paso TX 9533 SOUTHWESTERN BELL 540      
915-887 6 El Paso TX 9533 SOUTHWESTERN BELL 540      

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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