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: 214 [Rate centres in NPA 214] [Dial plan for NPA 214]

Region: TX

OCN: 7421 AT&T - LOCAL

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
214-257 A Dallas TX DLLSTXRIXPZ  552      
214-257 1 Dallas TX DLLSTXRIXPZ  552      
214-257 2 Dallas TX DLLSTXRIXPZ  552      
214-258 A Dallas TX DLLSTXRIXPZ  552      
214-258 0 Dallas TX DLLSTXRIXPZ  552      
214-258 7 Dallas TX DLLSTXRIXPZ  552      
214-258 9 Dallas TX DLLSTXRIXPZ  552      
214-259 A Dallas TX DLLSTXRIXPZ  552      
214-259 0 Dallas TX DLLSTXRIXPZ  552      
214-259 1 Dallas TX DLLSTXRIXPZ  552      
214-259 2 Dallas TX DLLSTXRIXPZ  552      
214-259 3 Dallas TX DLLSTXRIXPZ  552      
214-259 4 Dallas TX DLLSTXRIXPZ  552      
214-259 7 Dallas TX DLLSTXRIXPZ  552      
214-259 8 Dallas TX DLLSTXRIXPZ  552      
214-259 9 Dallas TX DLLSTXRIXPZ  552      
214-622 A Dallas TX DLLSTXTLDS3  552      
214-622 4 Dallas TX DLLSTXTLDS3  552      
214-622 9 Dallas TX DLLSTXTLDS3  552      
214-702 A Dallas Fort Worth Airport TX DLLSTXRIXPZ  552      
214-702 7 Dallas Fort Worth Airport TX DLLSTXRIXPZ  552   2002-07-10   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.