區域清單
- N7S 2V7 - Sarnia, Lambton, Ontario
- N7S 2V8 - Sarnia, Lambton, Ontario
- N7S 2V9 - Sarnia, Lambton, Ontario
- N7S 2W1 - Sarnia, Lambton, Ontario
- N7S 2W2 - Sarnia, Lambton, Ontario
- N7S 2W3 - Sarnia, Lambton, Ontario
- N7S 2W4 - Sarnia, Lambton, Ontario
- N7S 2W5 - Sarnia, Lambton, Ontario
- N7S 2W6 - Sarnia, Lambton, Ontario
- N7S 2W7 - Sarnia, Lambton, Ontario
- N7S 2W8 - Sarnia, Lambton, Ontario
- N7S 2W9 - Sarnia, Lambton, Ontario
- N7S 2X1 - Sarnia, Lambton, Ontario
- N7S 2X2 - Sarnia, Lambton, Ontario
- N7S 2X3 - Sarnia, Lambton, Ontario
- N7S 2X4 - Sarnia, Lambton, Ontario
- N7S 2X5 - Sarnia, Lambton, Ontario
- N7S 2X6 - Sarnia, Lambton, Ontario
- N7S 2X7 - Sarnia, Lambton, Ontario
- N7S 2X8 - Sarnia, Lambton, Ontario