Does the country provide individual online voter registration/polling assignment checks?
Hungary
Answer
Yes, confirmation of registration using online interface
Source
OSCE/ODIHR Limited Election Observation Mission Final Report (Parliamentary Elections, 6 April 2014)
“Voters were provided with ample opportunity to view the voter lists and make amendments at LEOs or online until 4 April.”
Comment
For 2014 elections, voters were able to view voter lists online here. They were also able to make amendments online.