2013. Collins Bartholomew Ltd. This polygon shapefile is a representation of the coverage area for 2G mobile communications networks around the world in 2013. The data is created... Collins Bartholomew Ltd.
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2007. Collins Bartholomew Ltd. Representation of the area covered by GSM (2G) mobile communications around the world as of first quarter 2007.
2008. Collins Bartholomew Ltd. Representation of the area covered by GSM (2G) mobile communications around the world as of first quarter 2008.
2009. Collins Bartholomew Ltd. Representation of the area covered by GSM (2G) mobile communications around the world as of first quarter 2009.
2011. Collins Bartholomew Ltd. Representation of the area covered by GSM (2G) mobile communications around the world as of December 2011.
2012. Collins Bartholomew Ltd. Representation of the area covered by GSM (2G) mobile communications around the world as of December 2012.
2013. Collins Bartholomew Ltd. Representation of the area covered by GSM (2G) mobile communications around the world as of December 2013.
2014. Collins Bartholomew Ltd. Representation of the area covered by GSM (2G) mobile communications around the world as of December 2014.
2015. Collins Bartholomew Ltd. Representation of the area covered by GSM (2G) mobile communications around the world as of December 2015.
2016. Collins Bartholomew Ltd. Representation of the area covered by GSM (2G) mobile communications around the world as of December 2016.