Quoted from Gnatty:In today's world, access to the internet is everywhere
Not on Interstate 80 on the western third in Nebraska except for North Platte. 75% of I-80 in Wyoming and Nevada. Even if there is cell coverage, which in some place there is none, (even with AT&T)cell service does not always allow for internet over the cell system.
Also no coverage on most of the Pacific Coast Highway between Carmel & San Luis Obispo.