Area code 437 covers part of Ontariostate, covering most of counties. It was started on Mar 25, 2013. This region follows US/Eastern timezone. Other popular area codes that belong to Ontario state include 226, 249, 289, 343, 365, 416, 519, 613, 647, 705, 807, 905.
| Date Changed | Change Details |
| Jan 13, 2014 | Area code 647 subscribers are now overlayed with area code 437. Subscriber area code 437-777 is operational from Jan 13, 2014. |
| Area Code | City | County | Population | Network Operator |
| 437-711 | 764,713 | Telecommunications Relay Service | ||
| 437-777 | Toronto | 341,779 | Rogers Communications Partnership |
| No reviews yet. |
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