How to retrieve mobile number from a SIM? Specially from BSNL SIM.

In the era of online recharge, it is very difficult to get the recharge coupon in market when you are away from your computer and you need to get your mobile easy recharge from local market. The vendor will ask you to tell the mobile number which you need to get recharge,Now days we are so dependent to mobile that we save all the contact number in mobile and whenever we need to dial somebody we go to search contact after searching the name we just press the the dial button every thing completed neither you remembered your friend or near & dears numbers nor your friends or near & dears remembers your numbers, where earlier days when there was no mobiles we have to either use our own land line to make a call or have to go to PCO booth and make call from there.  

Suppose a situation arose and your mobile balance exhausted and you are away from your computer and your mobile banking is also not working that time it will become near to impossible to get your mobile recharged from a vendor because vendor will ask your mobile number to recharge your mobile and you are not able tell your mobile number as you have not remembered your mobile number and even you don't have balance to make a call to get you mobile number from CLIP. If your are with your laptop or desktop then there is chances that you can trace your mobile number from auto fill text box if you done earlier any online recharge from your laptop or desktop . Even if your auto fill box if not working then you can get it from your online bank account statement details, if you had made any online recharge payment to your mobile number you can get you 

 If nothing is working in your favor  you have  forgotten your mobile number, your mobile balance exhausted and you are not near to your computer and laptop. Then there are some shortcut code which most of them  I have personally tested and some of them I have researched it from internet. These are those code which will help you to display your mobile number.

• How to know mobile number from BSNL SIM?The answer is just send SMS GPRS PRE to 53733 and you will get your mobile number within 5 minutes through SMS.    
• How to know mobile number from Reliance SIM?The answer is just  dial *1#
• How to know mobile number from TATADOCOMO SIM?The answer is just  dial *1#,  or *580#
• How to know mobile number from Virgin SIM?The answer is just  dial *1#
• How to know mobile number from Videocon SIM?The answer is just  dial *1#
• How to know mobile number from AIRCEL SIM?The answer is just  dial *888#
• How to know mobile number from IDEA SIM?The answer is just  dial *789#  & *112#
• How to know mobile number from loop SIM?The answer is just  dial *222#
• How to know mobile number from AIRTEL SIM?The answer is just send sms IM to 57070 or dial 141*1600#., *333#
• Smart User  can dial *2#
• How to know mobile number from Uninor SIM?The answer is just  dial *88#

These codes are not exhaustive and even some of them not works as sometimes it differs from circle to circle  so don't be panic try some other code or even you can call your service provider,they may help you but service provider may ask you many questions to get you confirmed whether you are a real mobile number holder or not, so if you not give the correct reply, which you have provided  at the time of taking your SIM then your service provider will may not disclose your mobile number