Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 972 [Rate centres in NPA 972] [Dial plan for NPA 972]

NXX: 777

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
972-777 A Dallas TX DLLSTX3769Z  473F USFON, INC. - TX 552      
972-777 0 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-01-17   
972-777 1 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-01-17   
972-777 2 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-01-17   
972-777 3 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-01-17   
972-777 4 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-01-17   
972-777 5 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-01-17   
972-777 6 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-01-17   
972-777 7 Dallas TX DLLSTX3769Z  473F USFON, INC. - TX 552   2020-01-16   
972-777 8 Dallas TX DLLSTX3769Z  473F USFON, INC. - TX 552   2020-01-16   
972-777 9 Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-01-17   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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