Restriction Code for LG CG 225

Question

I have an old cell phone from when I had cingular as my wireless company. I needed to transfer to a new service. The new cell phone I have is giving me problems and I so I thought I would just plug in my sim card into the old cell phone. The LG CG 225 says it is restricted and I was wondering if you could help me find the unlock code for it.. The IME # is: 011181-00-555810-6