Region List
- L1G 0A1 - Oshawa, Durham, Ontario
- L1G 0A2 - Oshawa, Durham, Ontario
- L1G 0A3 - Oshawa, Durham, Ontario
- L1G 1A1 - Oshawa, Durham, Ontario
- L1G 1A2 - Oshawa, Durham, Ontario
- L1G 1A4 - Oshawa, Durham, Ontario
- L1G 1A5 - Oshawa, Durham, Ontario
- L1G 1A6 - Oshawa, Durham, Ontario
- L1G 1A7 - Oshawa, Durham, Ontario
- L1G 1A8 - Oshawa, Durham, Ontario
- L1G 1A9 - Oshawa, Durham, Ontario
- L1G 1B1 - Oshawa, Durham, Ontario
- L1G 1B2 - Oshawa, Durham, Ontario
- L1G 1B3 - Oshawa, Durham, Ontario
- L1G 1B4 - Oshawa, Durham, Ontario
- L1G 1B5 - Oshawa, Durham, Ontario
- L1G 1B6 - Oshawa, Durham, Ontario
- L1G 1B7 - Oshawa, Durham, Ontario
- L1G 1B8 - Oshawa, Durham, Ontario
- L1G 1B9 - Oshawa, Durham, Ontario