30 Phone Numbers

McMaster switchboard: (905) 525-9140  (call this number to be able to enter the extension of the department you wish to reach)

Student Experience – Academic team: extension 20511

Student Experience – Career team: extension 20511

Campus Store: extension 20566

Innis Library: extension 22081

Housing Information: extension 24086

Emergency (Police/Ambulance/Fire): dial 911 from any phone at no charge