Список региона
- N7S 2X9 - Sarnia, Lambton, Ontario
- N7S 2Y1 - Sarnia, Lambton, Ontario
- N7S 2Y2 - Sarnia, Lambton, Ontario
- N7S 2Y3 - Sarnia, Lambton, Ontario
- N7S 2Y4 - Sarnia, Lambton, Ontario
- N7S 2Y5 - Sarnia, Lambton, Ontario
- N7S 2Y6 - Sarnia, Lambton, Ontario
- N7S 2Y7 - Sarnia, Lambton, Ontario
- N7S 2Y8 - Sarnia, Lambton, Ontario
- N7S 2Y9 - Sarnia, Lambton, Ontario
- N7S 2Z1 - Sarnia, Lambton, Ontario
- N7S 2Z2 - Sarnia, Lambton, Ontario
- N7S 2Z3 - Sarnia, Lambton, Ontario
- N7S 2Z4 - Sarnia, Lambton, Ontario
- N7S 2Z5 - Sarnia, Lambton, Ontario
- N7S 2Z6 - Sarnia, Lambton, Ontario
- N7S 2Z7 - Sarnia, Lambton, Ontario
- N7S 2Z8 - Sarnia, Lambton, Ontario
- N7S 2Z9 - Sarnia, Lambton, Ontario
- N7S 3A1 - Sarnia, Lambton, Ontario