Telecomunicações de São Martins[]
1961-1969[]
1969-1989[]
Television commercial (1981).
1989-2000[]
Television commercial (1991).
2000-2002[]
After its privatization in 1998, Telesma was acquired by Palésia Telecom, being currently part of Oi.
Telesma Celular[]
1994-1998[]
After Telesma's privatization in 1998, Telesma Celular was spun off from it and acquired by Celupal.