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      
281-272 0 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-272 1 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-272 2 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-272 4 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-272 5 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-272 7 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-272 9 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      
281-447 0 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-447 1 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-447 2 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-447 3 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-447 4 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-447 5 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-447 6 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-447 7 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-447 8 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      
281-591 0 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-591 1 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-591 2 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-591 3 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-591 4 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-591 5 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-591 6 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-591 7 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-591 8 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-760 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-760 0 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      
281-878 0 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-878 1 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-878 2 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-878 3 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-878 4 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-878 5 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-878 6 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-878 7 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-878 8 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      
281-978 7 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-978 8 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-978 9 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-999 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.