IMEI Validation Software by Mehmood Riaz
Ckeck IMEI of any Brand is Valid or Invalid
Use 15 Digit IMEI Number to get the Best Result
File size= 7KB
Another site for IMEI validation:
Note that this simply confirms that the IMEI is (probably) valid, it does not show if a handset is blacklisted. Effectively you can only determine if an IMEI number is fictitious or has been tampered with. For example 365520-10-028855-0 is a hoax IMEI.