Area Code 437 Location
Area code 437 covers the city of Toronto, Ontario, Canada.
Area code 437 is a General Purpose Code which was placed in service on March 25, 2013.
Area Code 437 Location Map
Source: Canadian Numbering Administrator (cnac.ca)
Overlay System
Area code 437 is part of an overlay complex with area codes 416, 647, and 942. Area code 416 was introduced in 1947, 647 in 2001, 437 in 2013 and 942 in 2025. Ten-digit dialing is mandatory in this region.
Area Code 437 NXX Codes Distribution
NXX Code Distribution by Exchange Area
Our reverse phone lookup will analyze the three-digit nxx code of any 437 numbering plan area (NPA) phone number and will show which company and exchange area it was initially assigned to. This nxx code data may help to determine the Canada carrier, and geographic area associated with that phone number.
| Exchange Area | Number of NXX Codes |
|---|---|
| Toronto | 543 |
NXX Code Distribution by Company
| Company | NXX Codes Assigned |
|---|---|
| Rogers Communications Canada Inc. (Wireless) | 158 |
| Bell Mobility | 132 |
| TELUS Mobility | 59 |
| Iristel Inc. | 58 |
| Fido Solutions Inc. | 47 |
| Freedom Mobile Inc. | 44 |
| TELUS Integrated Communications | 11 |
| Fibernetics Corporation | 10 |
| Zayo Canada Inc. | 8 |
| Rogers Communications Canada Inc. (Cable) | 7 |
| IXICA Communications Inc. | 3 |
| Comwave Networks | 2 |
| Beanfield Technologies Inc. | 1 |
| Distributel | 1 |
| Rogers Communications Canada Inc. | 1 |
| Videotron Ltd. | 1 |
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