SORUM, SD Rate Center

SORUM — SD

Data last updated: August 31, 2026

LATA

640

State

Area Codes

Exchanges (NXX)

Carriers

Coordinates

45.45326909968366, -102.9343223498748

Area Codes

Carrier	OCN	NXX Count
WEST RIVER COOPERATIVE TELEPHONE COMPANY	1689	1