Regiolijst
- L1G 4S4 - Oshawa, Durham, Ontario
- L1G 4S5 - Oshawa, Durham, Ontario
- L1G 4S6 - Oshawa, Durham, Ontario
- L1G 4S7 - Oshawa, Durham, Ontario
- L1G 4S8 - Oshawa, Durham, Ontario
- L1G 4S9 - Oshawa, Durham, Ontario
- L1G 4T1 - Oshawa, Durham, Ontario
- L1G 4T2 - Oshawa, Durham, Ontario
- L1G 4T3 - Oshawa, Durham, Ontario
- L1G 4T4 - Oshawa, Durham, Ontario
- L1G 4T5 - Oshawa, Durham, Ontario
- L1G 4T6 - Oshawa, Durham, Ontario
- L1G 4T7 - Oshawa, Durham, Ontario
- L1G 4T8 - Oshawa, Durham, Ontario
- L1G 4T9 - Oshawa, Durham, Ontario
- L1G 4V1 - Oshawa, Durham, Ontario
- L1G 4V2 - Oshawa, Durham, Ontario
- L1G 4V3 - Oshawa, Durham, Ontario
- L1G 4V4 - Oshawa, Durham, Ontario
- L1G 4V5 - Oshawa, Durham, Ontario