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.

NPA: 817 [Rate centres in NPA 817] [Dial plan for NPA 817]

NXX: 441

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-441 A Fort Worth TX FTWOTXALRS0  9533 SOUTHWESTERN BELL 552      
817-441 0 Fort Worth TX DLLTTX01CMD  5562 METROPCS, INC. 552      
817-441 1 Fort Worth TX FTWOTXALRS0  9533 SOUTHWESTERN BELL 552      
817-441 2 Fort Worth TX FTWOTXALRS0  9533 SOUTHWESTERN BELL 552      
817-441 3 Fort Worth TX DLLTTX01CMD  5562 METROPCS, INC. 552      
817-441 4 Fort Worth TX FTWOTXALRS0  9533 SOUTHWESTERN BELL 552      
817-441 5 Fort Worth TX FTWOTXALRS0  9533 SOUTHWESTERN BELL 552      
817-441 6 Fort Worth TX FTWOTXALRS0  9533 SOUTHWESTERN BELL 552      
817-441 7 Fort Worth TX FTWOTXALRS0  9533 SOUTHWESTERN BELL 552      
817-441 8 Fort Worth TX FTWOTXALRS0  9533 SOUTHWESTERN BELL 552      
817-441 9 Fort Worth TX FTWOTXALRS0  9533 SOUTHWESTERN BELL 552      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.