phone numbers used with WhatsApp: This is +62. When adding an Indonesian contact on WhatsApp, you should start with +62 followed by their mobile number (without the leading '0').
For example, if an Indonesian mobile number is you would save it in WhatsApp as
The verification code WhatsApp sends: When nigeria whatsapp number data you register your phone number with WhatsApp, you receive a 6-digit verification code via SMS. This is a one-time code to confirm you own the phone number.
Could you please clarify which "WhatsApp code" you are interested in?