PLDT lock/unlock NDD feature

This is an old feature of the PLDT phone system. To avoid bill shock from unwanted “long distance calls”, it may useful to use this feature.

I was curious if it is still working.

Instructions:

Your default PIN is “1234”

To change code: *85*Present Code*New Code# To lock: *54*Four digit code # To unlock: #54*Four digit code #

As of today, it still works.

Day 33 of #100DaysToOffload. Find out more about it here.