RELIANCE

This post may really HELP YOU.
Below listed are all the Secret codes that are used by Reliance's (Reliance CDMA) dealers, and this blog representing these codes

1. To check the status of an RSN number.
   Send the following SMS to 53738:
   GETSTAT RSNNUMBER
   (This code gives the status of your handset. Whether it's reported lost or blank or with mdn..)
2. To check date of activation of a particular mobile number:
   Send the following SMS to 53738:
   ODM MOBILENUMBER
3. To check a particular RSN number's activation date and its mobile number.
   Send the following SMS to 53738:
   ODR RSNNUMBER
   (This trick would really helpfull when ur mobile is lost)
4. To check your application status:
   Send the following SMS to 53738:
   STAT RSNNUMBER
   (This code really useful when you purchase a new handset)