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: DLLSTXSQDS2

Remotes:

Switch Switch name Switch type
PLANTXMZRS1    RS 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
214-614 A Irving TX 8958 XO TEXAS, INC. 552      
214-615 A Dallas TX 8958 XO TEXAS, INC. 552      
214-937 A Frisco TX 8958 XO TEXAS, INC. 552      
469-213 A Frisco TX 8958 XO TEXAS, INC. 552      
469-310 A Dallas TX 8958 XO TEXAS, INC. 552      
682-216 A Arlington TX 8958 XO TEXAS, INC. 552      
682-727 A Roanoke EMS TX 8958 XO TEXAS, INC. 552      
817-363 A Fort Worth TX 8958 XO TEXAS, INC. 552      

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.