Enter a 10-digit phone number 1234567890
Phone number details for 579-721 numbers
The 579-721 exchange is serviced by the following companies within the Longueuil ratecenter.
Videotron General Partnership
Call are routed trough OCN 8306 and CLLI - NOCLLIKNOWN (Common Language Location Identifier Code) and Point of Interface (POI) switch which is located in .