Tmobile
Tmobile plan is great...
Unlimited text and Data anywhere....Call's .20 cents/minute...
Never use the calling part but the data and text is a godsend....
Anchorage is a bit 'different' but as long as you're there one day at a time, you're generally okay...They 'data share' there with GCI and there is a limit on that..No problems for text but if you use a lot of data you can run out there.
Cheers