Cricket Wireless have used Google Maps to produce a coverage map for the US. Using the map it is possible to quickly see in which states Cricket have coverage.
The coverage map shows the scope of the calling areas. If you click on a state the map zooms in and shows the quality of coverage in that state. It is also possible to search the map by address and zipcode.
As well as checking Cricket's wireless coverage it is possible to check in which areas Cricket have 3G Broadband coverage and which areas will have coverage in the future.