Reference Data Rate Center Directory SO LINEVL, MO Rate Center SO LINEVL — MO Data last updated: March 10, 2026 LATA 632 State MO Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 40.57863509022052, -93.52427096806355 Area Codes 660 Top Carriers Carrier OCN NXX Count GRAND RIVER MUTUAL TEL CO 1888 1
