I have found a 30 mile hole in Cingular's coverage in Ohio along Rt. 32 and some smaller one's in WVA that last for maybe 5-6 miles. Tenneessee is decent along I-40 and onto I-59. Alabama was good until I would go across 82, then it was real spotty at best all the way into Starkville, MS. Eastern NC wasn't bad, just real tiny holes of maybe a mile. Va is not bad for Cingular. The map looks real good for covereage but it is deceiving as heck unless your in the Northern VA area around DC. I live right beside a Cingular owned tower, go 5 miles east, northeast and I lose service for about 5 more miles. Go to my parents house, 8 miles the other way and the coverage is horrible even though we are looking at the top of the tower. No one cell brand is perfect, they all will have holes, your best bet is to use a land line.