Region List
- L1G 1G6 - Oshawa, Durham, Ontario
- L1G 1G7 - Oshawa, Durham, Ontario
- L1G 1G8 - Oshawa, Durham, Ontario
- L1G 1G9 - Oshawa, Durham, Ontario
- L1G 1H1 - Oshawa, Durham, Ontario
- L1G 1H2 - Oshawa, Durham, Ontario
- L1G 1H3 - Oshawa, Durham, Ontario
- L1G 1H4 - Oshawa, Durham, Ontario
- L1G 1H5 - Oshawa, Durham, Ontario
- L1G 1H6 - Oshawa, Durham, Ontario
- L1G 1H7 - Oshawa, Durham, Ontario
- L1G 1H8 - Oshawa, Durham, Ontario
- L1G 1H9 - Oshawa, Durham, Ontario
- L1G 1J1 - Oshawa, Durham, Ontario
- L1G 1J2 - Oshawa, Durham, Ontario
- L1G 1J3 - Oshawa, Durham, Ontario
- L1G 1J4 - Oshawa, Durham, Ontario
- L1G 1J5 - Oshawa, Durham, Ontario
- L1G 1J6 - Oshawa, Durham, Ontario
- L1G 1J7 - Oshawa, Durham, Ontario