Regiunea lista
- K9A 1A2 - Cobourg, Northumberland, Ontario
- K9A 1A3 - Cobourg, Northumberland, Ontario
- K9A 1A4 - Cobourg, Northumberland, Ontario
- K9A 1A5 - Cobourg, Northumberland, Ontario
- K9A 1A6 - Cobourg, Northumberland, Ontario
- K9A 1A7 - Cobourg, Northumberland, Ontario
- K9A 1A8 - Cobourg, Northumberland, Ontario
- K9A 1A9 - Cobourg, Northumberland, Ontario
- K9A 1B1 - Cobourg, Northumberland, Ontario
- K9A 1B2 - Cobourg, Northumberland, Ontario
- K9A 1B3 - Cobourg, Northumberland, Ontario
- K9A 1B6 - Cobourg, Northumberland, Ontario
- K9A 1B7 - Cobourg, Northumberland, Ontario
- K9A 1B8 - Cobourg, Northumberland, Ontario
- K9A 1B9 - Cobourg, Northumberland, Ontario
- K9A 1C1 - Cobourg, Northumberland, Ontario
- K9A 1C2 - Cobourg, Northumberland, Ontario
- K9A 1C3 - Cobourg, Northumberland, Ontario
- K9A 1C4 - Cobourg, Northumberland, Ontario
- K9A 1C5 - Cobourg, Northumberland, Ontario