COVERAGE MAP

The image above is linked from T-Mobile's website. Please see T-Mobile's website for additional information:
http://www.t-mobile.com

T-Mobile has very good coverage where they have coverage in Oregon. I wish they still supported analog roaming so folks could make calls in some rural areas where they don't have coverage (i.e. to call a tow truck). T-Mobile's website has the best coverage maps in the industry. They really are spectacular. You can literally enter a street address and see how good your coverage will be on an unbelievably detailed map. If their coverage works for you, I think they are a very solid performer, and highly recommended.

T-Mobile website