The DLSZÂ trunkline 771-DLSZ (3579) is temporarily unavailable due to technical problems. While PLDT performs necessary maintenance, you can reach DLSZ offices by calling any of the following numbers:
Globe 0905-5503939*
Sun 0923-9020789*
Smart 0998-1881133*
*Reminder: Your mobile network’s standard call charges may apply.
We apologize for any inconvenience you may have experienced and we appreciate your understanding as PLDT fixes its system.
Gavin Isaiah Gacusan Represents PH, Wins Bronze at WIMO 2025
Congratulations to Gavin Isaiah Gacusan (DLSZ 2035) for winning the Bronze Award at the World International Mathematical Olympiad (WIMO) 2025,
