Reference Data Rate Center Directory GRAND JCT, MI Rate Center GRAND JCT — MI Data last updated: March 10, 2026 LATA 348 State MI Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 42.40410284574477, -86.07278115013429 Area Codes 269 Top Carriers Carrier OCN NXX Count FRONTIER NORTH, INC. - MI 0695 1
