Reference Data Rate Center Directory TREYNOR, IA Rate Center TREYNOR — IA Data last updated: March 10, 2026 LATA 644 State IA Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 41.23337202794712, -95.61217713356513 Area Codes 712 Top Carriers Carrier OCN NXX Count FRONTIER COMMUNICATIONS OF IOWA, INC. 1127 1
