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: HSTNTXADRP0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-219 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-219 0 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-219 1 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-219 2 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-219 3 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-219 4 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-219 6 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-227 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-372 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-372 0 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-372 1 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-372 2 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-372 3 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-372 5 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-372 7 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-442 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-449 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-560 2 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-560 8 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-590 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-594 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-594 5 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-985 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-985 0 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-985 2 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-985 3 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-985 4 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-985 6 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-985 7 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-985 8 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-986 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-986 1 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-986 2 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-986 3 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-986 4 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-986 5 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-986 6 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-986 8 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-987 A Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-987 0 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-987 1 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-987 2 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-987 3 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-987 6 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-987 7 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-987 8 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
281-987 9 Houston Suburban TX 9533 SOUTHWESTERN BELL 560      
832-554 8 Houston Suburban TX 9533 SOUTHWESTERN BELL 560   2012-02-03   

Last updated: Sat, 02 May 2026 12:20:53 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.