2011. 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.
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2011. 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.
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.
2011. Collins Bartholomew Ltd. Representation of the area covered by GSM (2G) mobile communications around the world as of December 2011.
2011. Collins Bartholomew Ltd. This raster dataset is a representation of the coverage area for 2G mobile communications networks around the world. Mobile Coverage is released a... Collins Bartholomew Ltd.
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.
2011. Collins Bartholomew Ltd. Representation of the area covered by 3G mobile communications around the world as of December 2011.
2011. Collins Bartholomew Ltd. This raster dataset is a representation of the coverage area for 3G mobile communications networks around the world. Mobile Coverage is released an... Collins Bartholomew Ltd.