How to activate and deactivate dnd in loop mobile

if you wish to stop receiving such communication from Loop on SMS or through calls, simply send "START0" as an SMS to 1909 (for both postpaid and prepaid) or inorder to receive communication from us on SMS or through calls, simply send "ST0P0" as an SMS to 1909 (for both postpaid and prepaid) or call on 1909 from your mobile phone to register with National Do not call register. This number is toll-free.

How to activate DND on uninor

To avoid unwanted telemarketing calls and messages, register your number with the National Customer Preference Register. Your Uninor mobile number will be registered within 7 days from the date of request. To register your mobile number, simply dial our toll free number 1909 and follow the IVR instructions.
You can also send an SMS START to 1909 from the available preferences-

The options are -

1. Option ‘0’- to STOP ALL promotional calls and messages
2. Option ‘1’- to STOP ALL promotional calls and to receive promotional message only from Banking/Insurance/Financial Products/Credit Cards
3. Option ‘2’- to STOP ALL promotional calls and to receive promotional message on Real Estate
4. Option ‘3’- to STOP ALL promotional calls and to receive promotional message on Education
5. Option ‘4’- to STOP ALL promotional calls and to receive promotional message on Health
6. Option ‘5’- to STOP ALL promotional calls and to receive promotional message on Consumer Goods and automobiles