For reference How to add/change friends and family numbers with BSNL (Kerala). *** UPDATE 2: BSNL have moved Kerala Circle users to new Intelligent Network. The new list of SMS and USSD codes are available here. http://prasanthkumars.blogspot.in/2015/07/bsnl-recharge-friends-and-family-ussd.html ****** *** UPDATE : FFM Oldnumber Newnumber to 53733 with charge of Rs.5/- to change a single number. Find your registered Friends and Family numbers - Dial *124# ****** Adding You can have 5 numbers in the FF scheme of BSNL. For adding 5 numbers to FF, send an SMS to 53733 in the following format: FFE<space>Number 1<space>Number 2<space>Number 3<space>Number 4<space>Number 5 You need to enter 5 numbers in the SMS. If not the request will be rejected. You will get a confirmation message once the request is accepted. Please save this message as you will need it for reference when changing the numbers. Changing You can chang...