Lista regionu
- N7S 1G2 - Sarnia, Lambton, Ontario
- N7S 1G3 - Sarnia, Lambton, Ontario
- N7S 1G4 - Sarnia, Lambton, Ontario
- N7S 1G5 - Sarnia, Lambton, Ontario
- N7S 1G6 - Sarnia, Lambton, Ontario
- N7S 1G7 - Sarnia, Lambton, Ontario
- N7S 1G8 - Sarnia, Lambton, Ontario
- N7S 1G9 - Sarnia, Lambton, Ontario
- N7S 1H1 - Sarnia, Lambton, Ontario
- N7S 1H2 - Sarnia, Lambton, Ontario
- N7S 1H3 - Sarnia, Lambton, Ontario
- N7S 1H4 - Sarnia, Lambton, Ontario
- N7S 1H5 - Sarnia, Lambton, Ontario
- N7S 1H6 - Sarnia, Lambton, Ontario
- N7S 1H7 - Sarnia, Lambton, Ontario
- N7S 1H8 - Sarnia, Lambton, Ontario
- N7S 1H9 - Sarnia, Lambton, Ontario
- N7S 1J1 - Sarnia, Lambton, Ontario
- N7S 1J2 - Sarnia, Lambton, Ontario
- N7S 1J3 - Sarnia, Lambton, Ontario