Area Code Profile
Area Code 289 Prefixes & Exchanges
Serving Oshawa, Ontario, Canada
Central Office Exchanges (Prefixes)
Select any prefix below to view phone lines, carrier networks, and consumer reports in that exchange:
| Exchange Prefix | City / Location | Line Type |
|---|---|---|
| 1-289-240-#### | Oshawa | Landline |
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About Area Code 289
Area code 289 is assigned to the geographic numbering plan serving Oshawa, Ontario.
Use the directory table to navigate through central office prefixes and explore individual telephone lines.