2 that I have used are

Posted by balibeli on Sunday, 18. October 2009 at 10:38 Bali Time:

In Reply to: Sim Cards posted by catchingup on Sunday, 18. October 2009 at 10:14 Bali Time:

simPATI pe De which worked perfect for me prefix 01019 to aus
and PRO XL bebas which worked fine but simPATI had better coverage