About 519:
519 is the area code which covers most of southwestern Ontario, Canada. It was introduced in 1953 from portions of area code 416 and 613. In 1957, parts of 519 and 613 formed area code 705. Area code 226 overlays the area, making 10-digit dialing mandatory.
Related Cities:
Area codes 519 and 226 and 548 cover most of southwest Ontario including the larger communities of Brantford, Cambridge, Chatham, Clinton, Guelph, Kitchener-Waterloo, Leamington, London, Orangeville, Owen Sound, Sarnia, Stratford, Windsor and Woodstock in addition to many smaller communities within the 519, 226 and 548 service area.