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: FTWOTXWSDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
817-246 A Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-367 A Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-367 0 Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-367 1 Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-367 2 Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-367 3 Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-367 4 Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-367 5 Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-367 6 Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-367 7 Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-935 A Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-935 1 Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-935 2 Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-935 3 Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-935 4 Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-935 5 Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-935 6 Fort Worth TX 9533 SOUTHWESTERN BELL 552      
817-935 7 Fort Worth TX 9533 SOUTHWESTERN BELL 552      

Last updated: Tue, 04 May 2021 15:04:27 UTC

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