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Research for the Blycroft directory series is lead by Mark Thomas, who has held this role for 4 years. The first directory produces was The MVNO Directory in 2006, which was followed by the MNO Directory in 2007. In 2010 the Fixed Directory and WiMAX Directory were both released for the 1st time. 

Each directory starts as a list of operations to research. This list is generated by consulting regulators, trade bodies and trade media. Operations are then verified by researching each operator individually. Where directories are updated annually the researchers review large quantities of daily telecoms news resources since the previous edition to help update the list of operators.

As part of the major research section the research team reviews each operator to help ensure that the profile data remains valid. This review is performed by interrogating the brand and company websites of the operators, parent companies and regulators. Financial reports, press releases, company statements and various official documentation are used in combination with trade press and social networking applications to capture information to be in the directory profiles. Direct consultation occurs with operators to clarify conflicting information.