Reference DataRate Center DirectoryTREYNOR, IA Rate CenterTREYNOR — IAData last updated: October 30, 2026LATA644StateIAArea Codes1Exchanges (NXX)1Carriers1Coordinates41.23337202794712, -95.61217713356513Area Codes712Top CarriersCarrierOCNNXX CountFRONTIER COMMUNICATIONS OF IOWA, INC.11271