The OEN is an identification number that the Ministry of Education assigns to elementary and secondary students across the province.
Every Ontario student is assigned a unique number.
This number is the primary identifier in a student’s academic records, and this number will follow the student through his or her elementary and secondary education
The OEN is a nine digit number (eight digits plus a check digit) that is randomly assigned, and tied to stable information about the student (name, gender and date of birth of the student).