Starting Dec. 27, 2022 all mobile subscribers must register their SIM cards or face deactivation after 180 days or 6 months
Here are the links to remember on December 27, 2022 for the SIM Card Registration.
For Smart/TNT/Sun Subsribers,
https://smart.com.ph/simreg
For DITO Subscribers,
https://dito.ph/RegisterDITO