Список региона
- N7S 1X6 - Sarnia, Lambton, Ontario
- N7S 1X7 - Sarnia, Lambton, Ontario
- N7S 1X9 - Sarnia, Lambton, Ontario
- N7S 1Y1 - Sarnia, Lambton, Ontario
- N7S 1Y2 - Sarnia, Lambton, Ontario
- N7S 1Y3 - Sarnia, Lambton, Ontario
- N7S 1Y4 - Sarnia, Lambton, Ontario
- N7S 1Y5 - Sarnia, Lambton, Ontario
- N7S 1Y6 - Sarnia, Lambton, Ontario
- N7S 1Y7 - Sarnia, Lambton, Ontario
- N7S 1Y8 - Sarnia, Lambton, Ontario
- N7S 1Y9 - Sarnia, Lambton, Ontario
- N7S 1Z1 - Sarnia, Lambton, Ontario
- N7S 1Z2 - Sarnia, Lambton, Ontario
- N7S 1Z3 - Sarnia, Lambton, Ontario
- N7S 1Z4 - Sarnia, Lambton, Ontario
- N7S 1Z5 - Sarnia, Lambton, Ontario
- N7S 1Z6 - Sarnia, Lambton, Ontario
- N7S 1Z7 - Sarnia, Lambton, Ontario
- N7S 1Z8 - Sarnia, Lambton, Ontario