As the demand for telecommunications services in Southern Ontario continues to grow, a new area code will be added to ensure adequate availability of telephone numbers. The geographic region currently covered by area codes 289, 365 and 905 will see the addition of a fourth area code, 742, on October 16, 2021.
- The new area code will be 742, and will only be assigned to new telephone numbers
- Anyone who already has a number with area code 289, 365 or 905 will keep the same number
- The geographic boundaries that govern long distance will not change
- Special numbers, like 9-1-1, will still be dialed using 3 digits
For the frequently asked questions, see below.