Question about the Tigo network in Guatemala

Hi All,

I'm attempting to unlock my Nokia 1108b phone. But, I need the Providers Network information. I was told it should start with 704, and that I need the next two digits. Anyone have any ideas?

I purchased this phone in Guatemala, but am now back in the states and would like to use it... But, I need to have it unlocked. Any information would be greatly appreciated.

Thanks in advance!

Model: 1108b
Imie: 010934001618162
Company: Tigo (prepaid company... I already tried using a Comcel code, but it didn't work)
Country: Guatemala
Phone made in: Mexico