Reference Data Rate Center Directory ANDOVER, MO Rate Center ANDOVER — MO Data last updated: March 10, 2026 LATA 632 State MO Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 40.56526881508538, -93.8966545209639 Area Codes 660 Top Carriers Carrier OCN NXX Count GRAND RIVER MUTUAL TEL CO 1888 1
