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1. Global 2G Mobile Communications Network Coverage, 2011

2011. Collins Bartholomew Ltd. This polygon shapefile is a representation of the coverage area for 2G mobile communications networks around the world in 2011. The data is created... Collins Bartholomew Ltd.

2. Global 3G Mobile Communications Network Coverage, 2011

2011. Collins Bartholomew Ltd. This polygon shapefile is representation of the area covered by 3G mobile communications networks around the world in 2011. The data is created fro... Collins Bartholomew Ltd.

3. Global 4G Mobile Communications Network Coverage, 2011

2011. Collins Bartholomew Ltd. This polygon shapefile is a representation of the coverage area for 4G mobile communications networks around the world in 2011. The data is created... Collins Bartholomew Ltd.