I'm currently in Portland, OR with my Koodo phone. Since I got here it has been reporting "no service." I assumed my Koodo roaming plan would cover all of the U.S. Is this incorrect? When I was in San Francisco I was on AT&T. Here in Portland I only see two T-mobile networks and a network labelled "A." Can I only connect to AT&T with Koodo? If so this makes my roaming package kind of a waste of money.