The Monon Telephone Company was franchised to operate a telephone exchange in the town of Monon in August of 1900. Exactly when the operation of the exchange began is not clear, but service was in use in April of 1902. James and Elizabeth Graves, the original owners of the company, transferred the company in 1914 to Alpha, Emma, and Loy Christley. The exchange was bought by Claudia Warner, Oliver J. Warner, and Mrs. Floy A. Warner and incorporated in 1919.