TELSTRA Optic Fibre Accredited Locator Underground Locating Services Pty Ltd is a Telstra Optic Fibre Accredited locator which is closely aligned with the 1100 DBYD. Review and verifying Telstra plans. Interpreting Telstra Network plans to ascertain the approximate location of Telstra plant. Identifying cable locations for Telstra plant other than major plant. Supervising manual exposure.