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: HSTNTXCLDS0

Remotes:

Switch Switch name Switch type
HSTXTXSDRS0  DEER PARK  5ER 
HSTXTXSMRS0  HOUSTON  5ER 
SPRNTXSMRS0  SPRING  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-228 A Houston TX 9533 SOUTHWESTERN BELL 560      
281-604 A Houston TX 9533 SOUTHWESTERN BELL 560      
281-727 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-207 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-209 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-230 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-265 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-277 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-287 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-289 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-307 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-309 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-319 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-321 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-336 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-356 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-359 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-371 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-388 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-393 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-420 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-422 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-428 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-445 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-507 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-609 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-656 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-657 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-718 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-730 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-757 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-767 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-844 A Houston TX 9533 SOUTHWESTERN BELL 560      
713-970 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-466 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-668 A Houston TX 9533 SOUTHWESTERN BELL 560      
832-852 A Houston TX 9533 SOUTHWESTERN BELL 560      

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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