Reference DataRate Center DirectoryTOLNA, ND Rate CenterTOLNA — NDData last updated: October 30, 2026LATA636StateNDArea Codes1Exchanges (NXX)1Carriers1Coordinates47.82790694778014, -98.43955237107704Area Codes701Top CarriersCarrierOCNNXX CountNORTH DAKOTA TELEPHONE CO.14471