Arthur Mutual Telephone Co.
Benton Ridge Telephone Co.
Buckland Telephone Co.
Doylestown Telephone Co.
Farmers Mutual Telephone Co.
Fort Jennings Telephone Co.
Glandorf Telephone Co.
Kalida Telephone Co.
Middle Point Home Telephone Co.
New Knoxville Telephone Co.
Ottoville Mutual Telephone Co.
Ridgeville Telephone Co.
Sherwood Mutual Telephone Association
Sycamore Telephone Co.
Telephone Service Co.
Vaughnsville Telephone Co.
Wabash Mutual Telephone Co.