Area Code 579 Location
Area code 579 covers the suburbs of Montreal in the province of Quebec, encompassing the Montérégie region, extending south to the New York border.
Area code 579 is a general purpose code which was placed in service on August 21, 2010.
Area Code 579 Location Map
Source: Canadian Numbering Administrator (cnac.ca)
Overlay System
Area code 579 is an overlay to area code 450. This means that both area codes serve the same geographic region. Area code 450 entered service in 1998. Area code 579 was introduced effective August 21, 2010. Area code 354 was formally assigned as of February 2, 2019 as an additional area code for the 450/579 overlay complex and is now in use since October 22, 2022.
Area Code 579 NXX Codes Distribution
NXX Code Distribution by Exchange Area
Our reverse phone lookup will analyze the three-digit nxx code of any 579 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 |
|---|---|
| Granby | 20 |
| Joliette | 19 |
| St-Jerome | 17 |
| St-Hyacinthe | 16 |
| Ste-Therese | 15 |
| Longueuil | 14 |
| Chomedey | 13 |
| Sorel | 13 |
| St-Jean | 13 |
| Laval-Est | 11 |
| Laval-Ouest | 11 |
| Pont-Viau | 11 |
| St-Eustache | 11 |
| Valleyfield | 11 |
| Other | 443 |
NXX Code Distribution by Company
| Company | NXX Codes Assigned |
|---|---|
| TELUS Quebec | 116 |
| Fibernetics | 103 |
| Videotron | 72 |
| Iristel | 66 |
| Distributel | 56 |
| Comwave Networks | 44 |
| ISP Telecom | 43 |
| Cooptel | 37 |
| IXICA Communications | 26 |
| Bell Canada | 21 |
| TELUS Mobility | 15 |
| Bell Mobility | 7 |
| Telecommunications Xittel | 7 |
| InnSysVoice | 6 |
| Fido Solutions | 5 |
| Rogers Communications Canada (Cable) | 5 |
| Telebec | 3 |
| 9164-3122 Quebec | 2 |
| Rogers Communications Canada (Wireless) | 2 |
| Zayo Canada | 2 |
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