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: HSTNTXAIDS0

Remotes:

Switch Switch name Switch type
HSTNTXSHRS0  SHELDON  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-260 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-272 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-405 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-445 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-447 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-448 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-591 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-760 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-820 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-847 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-878 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-931 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-978 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-999 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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