Overview: Blycroft Publishing’s MNO Directory has become a staple of global industry knowledge for keeping track of who operates where. Telecoms analysts have been using this directory since its first launch back in March 2006. Each new edition builds upon the work of the previous, with this year’s edition containing 816 mobile network operators (featuring both management contacts, network technology and subscriber data), of which 71 MNOs are new to the 2011 edition, and 4G for the first time.