The SW and LW bands are used by a lot of countries around the world, but not US America. However, these bands can and do propagate worldwide and some stations can be heard in the US. I had an old Volvo with a Becker in it with these bands and I listened to them a lot. Now I have a Yaesu FT-100 in the car and still listen to the SW stuff.

There was a SW station in Utah which surprised me. I don't know if it was legal or not, but it was there for years.