Regiolijst
- L1G 4L9 - Oshawa, Durham, Ontario
- L1G 4M1 - Oshawa, Durham, Ontario
- L1G 4M2 - Oshawa, Durham, Ontario
- L1G 4M3 - Oshawa, Durham, Ontario
- L1G 4M4 - Oshawa, Durham, Ontario
- L1G 4M5 - Oshawa, Durham, Ontario
- L1G 4M6 - Oshawa, Durham, Ontario
- L1G 4M7 - Oshawa, Durham, Ontario
- L1G 4M8 - Oshawa, Durham, Ontario
- L1G 4M9 - Oshawa, Durham, Ontario
- L1G 4N1 - Oshawa, Durham, Ontario
- L1G 4N2 - Oshawa, Durham, Ontario
- L1G 4N3 - Oshawa, Durham, Ontario
- L1G 4N4 - Oshawa, Durham, Ontario
- L1G 4N5 - Oshawa, Durham, Ontario
- L1G 4N6 - Oshawa, Durham, Ontario
- L1G 4N7 - Oshawa, Durham, Ontario
- L1G 4N8 - Oshawa, Durham, Ontario
- L1G 4N9 - Oshawa, Durham, Ontario
- L1G 4P1 - Oshawa, Durham, Ontario