I need to unlock 2 cell phones that are network locked through cricket carrier
Hi Debbie. There are requirements for the device to be eligible for unlocking:
If you're an active Cricket customer and believe you meet the eligibility requirements listed above, sign in to My Account and visit Account Settings. Select Get Code. Follow the prompts to receive your unlock code. You will then enter this code on your phone to unlock it. Non-Cricket customers, please call Customer Support at 1-800-CRICKET (1-800-274-2538). (source)
Hope that helps!