Reference Data Rate Center Directory BERTHA, MN Rate Center BERTHA — MN Data last updated: March 10, 2026 LATA 636 State MN Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 46.2660000831821, -95.06217112324978 Area Codes 218 Top Carriers Carrier OCN NXX Count EAST OTTER TAIL TEL. CO. 1385 1
