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: DLLSTXMEDS0

<< 1 2 3 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
214-637 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-637 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-637 4 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-637 5 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-637 6 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-637 7 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-637 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-637 9 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-638 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-638 0 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-638 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-638 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-638 3 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-638 4 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-638 6 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-638 7 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-638 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-638 9 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-640 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-640 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-640 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-640 3 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-640 4 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-640 5 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-640 6 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-640 7 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-640 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-640 9 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-643 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-643 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-643 4 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-643 7 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-645 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-648 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-678 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-688 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-688 0 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-688 1 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-688 2 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-688 3 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-688 4 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-688 5 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-688 6 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-688 7 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-688 8 Dallas TX 9533 SOUTHWESTERN BELL 552      
214-689 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-819 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-879 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-905 A Dallas TX 9533 SOUTHWESTERN BELL 552      
214-920 A Dallas TX 9533 SOUTHWESTERN BELL 552      

<< 1 2 3 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.