Need Restriction Code # for nokia 6220

HI,

I Have a nokia 6220, it was working fine until i started hooking up
the computer and download ringtones, after restarting it it ask now
for a phone restriction code #. the phone was brought outside the US
and it an open line phone.

I would appreciate it very very much if someone can help me it's been
more than 2 months already that i have been looking for ways to have
this working again.