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: DLLSTXLDPS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
469-445 A Dallas TX 912E CONSOLIDATED COMMUNICATIONS ENTERPRISE SERVICES-TX 552      
469-445 4 Dallas TX 912E CONSOLIDATED COMMUNICATIONS ENTERPRISE SERVICES-TX 552   2016-08-12   
972-440 A Carrollton TX 912E CONSOLIDATED COMMUNICATIONS ENTERPRISE SERVICES-TX 552      
972-440 4 Carrollton TX 912E CONSOLIDATED COMMUNICATIONS ENTERPRISE SERVICES-TX 552   2017-11-03   

Last updated: Thu, 04 Aug 2022 23:14:42 UTC

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