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.
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Switch: DLLRTXVM0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
469-895 A Dallas TX 506J TWILIO INTERNATIONAL, INC. 552      
469-895 8 Dallas TX 506J TWILIO INTERNATIONAL, INC. 552   2020-10-10   
972-810 8 Carrollton TX 506J TWILIO INTERNATIONAL, INC. 552   2013-11-29   
972-810 9 Carrollton TX 506J TWILIO INTERNATIONAL, INC. 552   2013-11-29   

Last updated: Sun, 06 Oct 2024 02:51:32 UTC

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