Alaska Airlines Boeing 737-900ERs

Alaska Airlines currently has 8 Boeing 737-900ERs in their fleet. But I’d like to know where they operate them too. The only one I am aware of is San Diego, and possibly Hawaii. It possibly might be used on high density routes.

Do any of you know where they operate them too?

They also fly transcontinental, such as Boston to Seattle.

Also SEA to ANC, EWR and MCO

They use -800’s for Hawaii runs, they are the only ones that are ETOPS at the moment, unless that has changed recently.