| District of Ontario area codes: 519 | |
|---|---|
| Country | Canada |
| State/Province | Ontario |
| Major City | Comber |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 519-262 | Hensall, ON | Bell Canada | |
| 519-263 | Hensall, ON | Tuckersmith Communications Co-operative Ltd. | |
| 519-264 | Mount Brydges, ON | Bell Canada | |
| 519-265 | Guelph, ON | Rogers Communications Partnership (cable) | |
| 519-266 | London, ON | Globility | |
| 519-267 | Galt, ON | Rogers Communications Partnership (cable) | |
| 519-268 | Dorchester, ON | Bell Canada | |
| 519-269 | Harrietsville, ON | Bell Canada | |
| 519-270 | Owen Sound, ON | Rogers Communications Partnership (wireless) | |
| 519-271 | Stratford, ON | Bell Canada | |
| 519-272 | Stratford, ON | Bell Canada | |
| 519-273 | Stratford, ON | Bell Canada | |
| 519-274 | Stratford, ON | Bell Canada | |
| 519-275 | Stratford, ON | Bell Canada | |
| 519-276 | Stratford, ON | Bell Canada | |
| 519-277 | Hespeler, ON | Bell Mobility | |
| 519-278 | Orangeville, ON | Bell Mobility | |
| 519-279 | Kitchener, ON | Globility | |
| 519-280 | London, ON | Bell Mobility | |
| 519-281 | London, ON | Bell Mobility |
There are 779 prefixes, In the code area, the major cities are Dutton, ON;Teeswater, ON;Wheatley, ON;Goderich, ON. The major city is Dutton.