Do you have a regular monthly account (postpaid) or are you prepaid?
Do you know where all you'll be yet?
Roaming in Alaska will be on either GCI or AT&T.
When you're on GCI, it's treated like you're on T-Mobile's network from a bucket. In the places where you might see AT&T, texting/calling is just like normal (included in your plan if you've got a normal postpaid account). For data roaming, you can check out Domestic data roaming to see how much data you might have available. We have a great roaming deal with GCI, AT&T isn't quite as generous.
As for coverage, I drove from Canada across through Fairbanks, down to Anchorage and the peninsula below, then back out to Canada. Coverage is generally pretty good. Obviously it's Alaska so there's a lot of nature but if you've looked at the places on the coverage map and it shows service then you should be at least able to call and text. I was chatting (both carrierS), texting (both carriers) and even streaming music/videos (on GCI) throughout my trip.
Thank you for the information you provided.
I have a regular monthly account with the Simple Choice unlimited 4G data plan. On the Domestic data roaming FAQs link, the table shows that if you have unlimited data you're limited to 50MB of roaming. Is that the regular unlimited data, not the plan I'm on where I pay an extra $10/mo to have truly unlimited 4G data?
We're taking a cruise and the first two ports are Ketchikan and Juneau.
The 50MB would be the roaming allotment for the Truly Unlimited plan.
The great news though is that as far as I can tell both Juneau and Ketchikan are showing as GCI for roaming so you should be golden.
Thank you for your informative posts on exceptional roaming coverage in Alaska. I am interested in purchasing a 'GPS Smart Sole' for my 75 YO Mom whom lives in Anchorage, AK 99508. Glady's unfortunately has dementia borderline Alzheimers. This product has great reviews and features but is dependent and available "wherever T-Mobile coverage is available". Would this product work in Alaska without a TMobile account as TMobile is not offered in Alaska at this time but appears you have a cooperative agreement with GCI and AT&T for TMobile devices.
Appreciate your time and consideration in advance.
Products like that do require primary native T-Mobile coverage, so I would not work for a situation such as yours where roaming would be the primary.
I wish I had a more favorable answer and hope you are able to find something that works for you and your mom!