L4Z is a Forward Sortation Area Code (FSA), It is located in West Rathwood / East Hurontario / SE Gateway / Sandalwood Mississauga in Ontario, Canada. FSA is a geographical region in which all postal codes start with the same three characters. L4Z is an Urban FSA code. The main area code of the area of L4Z is 905 289 365. There are about 536 postal codes.