I managed technology for a large corp. and throughout the US Verizon by far had the best coverage, HOWEVER, our blackberrys had to be AT&T for the International Coverage of our travelers. I had a home in Mt. Vernon on Apple Valley and AT&T does not work in that area, but my Verizon did.... so you have to way your travels and coverage maps, but within our corporation Verizon was the better coverage domestically...... good luck...........................