I made this recently so I thought I'd share. The data is fresh as of today and it was obtained directly off of the website of the two carriers.
note: the map is certainly NOT PERFECT. There were many elements on the original maps that had to be removed to overlay them together such as other services coverage areas with different colors, differing state and city label locations, etc. In the areas where extraneous text labels were removed on the Verizon coverage, I did the best I could to extrapolate the coverage boundaries based on the surrounding area. That being said, DO NOT RELY on this map to insure you have 3G service in your area -- it is only intended to be used for a quick comparison of national coverage. To check your local area for coverage, please visit http://www.att.com or http://www.verizonwireless.com.
The Image below is an Gif animation. You need to let the frames load to see the comparison data...
note: the map is certainly NOT PERFECT. There were many elements on the original maps that had to be removed to overlay them together such as other services coverage areas with different colors, differing state and city label locations, etc. In the areas where extraneous text labels were removed on the Verizon coverage, I did the best I could to extrapolate the coverage boundaries based on the surrounding area. That being said, DO NOT RELY on this map to insure you have 3G service in your area -- it is only intended to be used for a quick comparison of national coverage. To check your local area for coverage, please visit http://www.att.com or http://www.verizonwireless.com.
The Image below is an Gif animation. You need to let the frames load to see the comparison data...