Reference Data Rate Center Directory OLDMISSION, MI Rate Center OLDMISSION — MI Data last updated: March 10, 2026 LATA 348 State MI Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 44.9622232, -85.48535599999998 Area Codes 231 Top Carriers Carrier OCN NXX Count ACE TEL. CO. OF MICHIGAN, INC. 0720 1
