CodeCountryRegionCityOperatorAdded
+1 972 USATexasDallas2013-01-08
+1 972 USATX Texas: Dallas Metro (overlays 214/469)2013-08-22
+1 972 USADallas, TX2013-10-18
+1 972 924USACollinAnna, TXSouthwestern Bell, Landline2013-10-18