| District of Quebec area codes: 450 | |
|---|---|
| Country | Canada |
| State/Province | Quebec |
| Major City | Roxton Falls |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 450-283 | Saint Bruno, QC | Isp Telecom | |
| 450-284 | Dunham, QC | Videotron General Partnership | |
| 450-285 | Varennes, QC | Isp Telecom | |
| 450-286 | Longueuil, QC | Isp Telecom | |
| 450-287 | Chateauguay, QC | Isp Telecom | |
| 450-288 | Valleyfield, QC | Bell Mobility | |
| 450-289 | Beauharnois, QC | Isp Telecom | |
| 450-290 | Saint Constant, QC | Isp Telecom | |
| 450-291 | Saint Blaise, QC | Bell Canada | |
| 450-292 | Mansonville, QC | Bell Canada | |
| 450-293 | Farnham, QC | Bell Canada | |
| 450-294 | Clarenceville, QC | Bell Canada | |
| 450-295 | Dunham, QC | Bell Canada | |
| 450-296 | Notre Dame De Stanbridge, QC | Telebec Ltee. | |
| 450-297 | Eastman, QC | Bell Canada | |
| 450-298 | Frelighsburg, QC | Bell Canada | |
| 450-299 | Henryville, QC | Bell Canada | |
| 450-300 | Boucherville, QC | Iristel Inc. | |
| 450-301 | Saint Remi, QC | Isp Telecom | |
| 450-302 | Saint Lin, QC | Videotron General Partnership |
There are 768 prefixes, In the code area, the major cities are Roxton Falls, QC;Coteau Landing, QC;Saint Barthele. The major city is Roxton Falls.