Canada Calling Codes
Country Code +1
| To dial Canada from outside the US/Caribbean (Country Code 1) dial the IDD prefix + 1 + Area Code + Local Number | |
| To dial from the U.S./Caribbean dial 1 + Area Code + Local Number | Toronto has required 10-digit dialing since 8 January 2001 | |
| Toronto got a new area code (647) on 5 March 2001 and local 10-digit dialing began | Click here for more | Communities in the 905 area code have required 10-digit dialing since 7 April 2001 | |
| Since 9 June 2001 area code 905 has shared an "overlay" with a new area code 289 | Click here for more | On 3 November 2001 the new area code 778 overlay was introduced in the 604 region of British Columbia | |
| Beginning 11 August 2001 permissive dialing with 10 digits began 10-digit dialing became mandatory on 3 November 2001 | |
| For a discussion of upcoming area code changes in the US and Canada | |
| City Codes | |
| Alberta (Northern) | 780 |
| Alberta (Southern) | 403 |
| British Columbia (Except Vancouver) | 250 |
| British Columbia (Vancouver area) | 604 |
| Fort William | 807 |
| London | 519 |
| Manitoba | 204 |
| New Brunswick | 506 |
| Newfoundland | 709 |
| Northwest Territories | 867 |
| Nunavut | 867 |
| Nova Scotia | 902 |
| Ontario (London) | 519 |
| Ontario (North Bay) | 705 |
| Ontario (Ottawa) | 613 |
| Ontario (Thunder Bay) | 807 |
| Ontario (Toronto Metro) See note above | 416 |
| Ontario (Toronto Vicinity) See note above | 905 |
| Prince Edward Island | 902 |
| Québec (Montréal Island) | 514 |
| Québec (Montréal north & south shore) | 450 |
| Québec (Québec City) | 418 |
| Québec (Sherbrooke) | 819 |
| Saskatchewan | 306 |
| Yukon Territory | 867 |
