Lista regionu
- N7S 1S2 - Sarnia, Lambton, Ontario
- N7S 1S3 - Sarnia, Lambton, Ontario
- N7S 1S4 - Sarnia, Lambton, Ontario
- N7S 1S5 - Sarnia, Lambton, Ontario
- N7S 1S6 - Sarnia, Lambton, Ontario
- N7S 1S7 - Sarnia, Lambton, Ontario
- N7S 1S8 - Sarnia, Lambton, Ontario
- N7S 1S9 - Sarnia, Lambton, Ontario
- N7S 1T1 - Sarnia, Lambton, Ontario
- N7S 1T2 - Sarnia, Lambton, Ontario
- N7S 1T3 - Sarnia, Lambton, Ontario
- N7S 1T4 - Sarnia, Lambton, Ontario
- N7S 1T5 - Sarnia, Lambton, Ontario
- N7S 1T6 - Sarnia, Lambton, Ontario
- N7S 1T7 - Sarnia, Lambton, Ontario
- N7S 1T8 - Sarnia, Lambton, Ontario
- N7S 1T9 - Sarnia, Lambton, Ontario
- N7S 1V1 - Sarnia, Lambton, Ontario
- N7S 1V2 - Sarnia, Lambton, Ontario
- N7S 1V3 - Sarnia, Lambton, Ontario