In 2017 Presidential Elections, 13,000 polling stations were equipped with electronic equipment to count votes digitally. There is no further data on how these results were transmitted to higher levels.
Summary Report: Iran’s June 14, 2013 Presidential and City and Village Elections
By National Democratic Institute
“Election results are compiled and tabulated behind closed doors with no candidate representatives or independent witnesses present, exacerbating a lack of transparency in the overall process. Authorities should make the tabulation and compilation of votes at all stages more accessible.”