Reference Data Rate Center Directory XXXXXXXXXX, MI Rate Center XXXXXXXXXX — MI Data last updated: March 10, 2026 LATA 999 State MI Area Codes 13 Exchanges (NXX) 116 Carriers 1 Coordinates 0, 0 Area Codes 231 248 269 313 517 586 616 679 734 810 906 947 989 Top Carriers Carrier OCN NXX Count MICHIGAN BELL TEL CO 9323 6
