I am both a Prepaid and Postpaid subscriber. I have both Globe postpaid and a Sun prepaid. My Sun Cellular prepaid SIM is loaded with P15o load every month which has 4 hours of free voice calls and Unlimited SMS to all SUN subscribers.

SUN prepaid reminds me two days before the load expires, by that time I need to re-load it so that I can continue enjoying my Unlimited SMS, unused voice calls will be carried to the next cycle. If you missed it your counter resets to zero.
But I always am in trouble whenever I want to check my current balance. I keep asking my friends how to check the balance in my Prepaid SIM. I thought this post might help all Prepaid subscribers.
Anyway, I gathered all Balance Inquiry procedure for all networks in the Philippines. This is for all Prepaid Subscribers.
Smart | Sun | Globe |
| Type ?1515and send to 214, ORDial 1515 + SEND | Type *221#then Press SEND, ORDial 221 then Press SEND | Dial 222then press call (Charge is P1.00), ORText BAL send to 222 (Free) |
These are the major Prepaid network in the Philippines. I have yet to update this for Talk N’ Text, Touch Mobile and Red Mobile as well.
Way back I also have written about Philippine’s Mobile Prefixes.
Update: Here are the rest of the Prepaid operators.
TALK N TEXT | RED MOBILE | Globe |
| Type ?15001 or ?15005 Send to 214, OR15001 Press CALL or SEND | Type 999, Send to 9939 | Dial 802 and press CALL (Charge is P1.0), ORdial *102#, and press CALL, an SMS will be sent to you containing your balance |