How to call a phone extension of the Politecnico di Milano

All the phone and fax extensions can be called as urban telephone numbers of the Milano and Como district, as follows:

The extensions of phone numbers located in Cremona, Lecco, Mantova and Piacenza can also be called using the following prefixes:

For example, the extension +7329 of the Como Campus can be called either as: 02 2399 7329 of as 031 332 7329.