| District of Ontario area codes: 519 | |
|---|---|
| Country | Canada |
| State/Province | Ontario |
| Major City | Comber |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 519-302 | Paris, ON | Rogers Communications Partnership (cable) | |
| 519-303 | Ingersoll, ON | Rogers Communications Partnership (cable) | |
| 519-304 | Brantford, ON | Rogers Communications Partnership (cable) | |
| 519-305 | Stratford, ON | Rogers Communications Partnership (cable) | |
| 519-306 | Shelburne, ON | Rogers Communications Partnership (cable) | |
| 519-307 | Orangeville, ON | Rogers Communications Partnership (cable) | |
| 519-308 | Hillsburgh, ON | Rogers Communications Partnership (cable) | |
| 519-309 | Brantford, ON | Rogers Communications Partnership (cable) | |
| 519-310 | Bell Canada | ||
| 519-312 | Sarnia, ON | Bell Mobility | |
| 519-313 | Mount Forest, ON | Telus Mobility | |
| 519-314 | Mount Forest, ON | Telus Mobility | |
| 519-315 | Erin, ON | Rogers Communications Partnership (cable) | |
| 519-316 | Caledon, ON | Rogers Communications Partnership (cable) | |
| 519-317 | London, ON | Bell Mobility | |
| 519-318 | London, ON | Bell Mobility | |
| 519-319 | London, ON | Bell Mobility | |
| 519-320 | Woodstock, ON | Bell Mobility | |
| 519-321 | Mount Forest, ON | Bell Canada | |
| 519-322 | Leamington, ON | Bell Canada |
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.