Reference Data Rate Center Directory UNDERWOOD, MN Rate Center UNDERWOOD — MN Data last updated: March 10, 2026 LATA 636 State MN Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 46.2854343910656, -95.8705985089121 Area Codes 218 Top Carriers Carrier OCN NXX Count PARK REGION MUTUAL TEL. CO. 1450 1
