Here are some useful ussd codes for all Indian networks
Airtel:
Balance check:*123#
2G net balance:*123*7#,*123*10#
3G net balance *123*11#
Sms pack :*555#,*777#
Daily sms count :*123*5#
Grps pack : sms MRP GPRS to 51619
Special offers/packs:*222#
Get recharge value of any topup:Sms amount to 369
Recharge:*120*coupon number#,or *101*number#
Know your own number :*140*1600#,*282#,*121*9#
Airtel gifting service/balance transfer:*141#
My Airtel my offer:*121#
Deactivate mobile office:*567#
Twitter:*515#
Facebook:*325#
Stop a service:sms STOP to 121
Start a service:sms START to 121
Full talktime offer :-sms MRP FULLTT to 51619
Gprs settings:sms MO to 52567 or LIVE to 52567
Vodafone
Balance check:*123#
2G net balance:*141*9# or *111*6# or sms GPRS to 144
3G net balance :*111*5*2#
Night Gprs balance:*123*8#
Sms balance:*142#
Calling balance:*145#
Minutes balance:*148#
V2v night minutes*147#
offers:*121#
special offers :*111*8#
Dnd :1909
Know your number:*111*2#,*8888#,*121*0#,*555#,164
custmore care:*111#
balance transfer:*131*amount*receiver number#
Activate 3G(prepaid):sms ACT 3G to 144
Activate 3G (postpaid):sms ACT 3G to 111
Check active plans:*111*6*2#
Usage allowance:*111*6*2#
Low balance services:*111*9#
Bonus cards:*111*7#
Vodafone delights:*111*1#
Last three calls:*111*3*1#
Last three sms :*111*3*2#
Last three charges:*111*4#
Last three recharges:*111*5#
Special packs:*121#
BSNL
Balance check:*123#
2G net balance:*123*6#,123*10#
Night gprs balance:*123*8#
Sms balance:*123*1#,123*5#,*125#
Minutes balance:*123*2#
Video call balance:*123*9#
Know your number :*8888#,164
Fnf enquiry:*124#
Data balance enquiry:*234#
Last call charge details:*102#
Voice paqck info:*126#
IDEA
Balance check:*123#,*212#,*130#
2G net balance:*125#,*131*3#
Sms balance:*451#,*161*1*#
Gprs settings:Sms Set to 12345 or 54671
Special packs:*131*3#
Recharge*130*rechargecode#
Know your number:*789#,*100#,*1#
Customer care:121,198,12345
Service menu :*147#
account balance*456#,*457#
Balance transfer:*567*receiverno*amount#
idea pack:*369#
idea price:*567#
idea menu*111#
activate 3G:sms ACT 3G to 12345
deactivate 3G:sms DEACT 3G To 12345
Docomo
Balance check:*111#,12525
2G net balance:*111*1#
Balance enquiry:*191*2#
service points:*191*4#
Last 3 recharges:*191*5#
status of free usage*191*6#
start or stop services*191*7#
service request :*191*8#
customer preference*191*9*1#
special packs:*141#
Know your number:*580#
activate 3G:sms ACT 3G to 53333
Recharge:*135*2*code#
Reliance
Balance check:*367#,*306#,*402#
2G net balance:*333*1*3*1# or *367*3#
3G net balance:sms MBAL to 55333
Gprs settings:sms ALL to 55100
special packs:*777#
caller tunes:*999#
check your number:*1#
recharge:*368#,*305*code#
daily or weekly packs:*123#,*321#
Local call balance:*367*2#
Uninor
Balance:*222*2#,123,*363*4#
Know your number:*222*4#
Gprs settings:sms ALL to 58355
Tariff plans:50001
MTS
Balance check:*123#
activate net:*109*210#
Videocon
Balance check:*123#
MTNL
Balance check:*123#
your number :*8888#
Loop:
Balance check:*100#
Local l2l calls:*101#
sms pack balance:*102#
Free local call:*103#
free std balance:*104#
erecharge:*105#
free loop to others balance:*106#
free local +national sms *107#
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