Please! Help me for unlock my Lg B470

I have an lg b470, and it's already out of contract so I think it's eligible to unlock as well.
Could you please help me to unlock my phone so I can use it with other carrier Sims. I would appreciate it.

My IMEI number is: 3[edited for privacy-please do not post personal or unique information such as but not limited to full names, employee ID numbers, email addresses, phone numbers, account numbers, etc.]

Please let me know if you could help me out. Thanks again.