Does the country provide individual online voter registration/polling assignment checks?

Bulgaria

Answer

Yes, assigned polling station using online interface Yes, assigned polling station using mobile phone

Source

Directorate General "Civil Registration and Administrative Services" at the Ministry of Regional Development and Public Works provides information about the number of the polling station and place of voting for elections for deputies of March 26, 2017 for all Bulgarian citizens. All voters can verify the address of your polling in the following ways: In Internet at http://www.grao.bg/elections/ or via SMS. The system returns an SMS number and address of the polling station for the PIN entered.

Comment

Voters can check their assigned polling station here and via SMS.