Bölge listesi
- N7S 3C4 - Sarnia, Lambton, Ontario
- N7S 3C5 - Sarnia, Lambton, Ontario
- N7S 3C6 - Sarnia, Lambton, Ontario
- N7S 3C7 - Sarnia, Lambton, Ontario
- N7S 3C8 - Sarnia, Lambton, Ontario
- N7S 3C9 - Sarnia, Lambton, Ontario
- N7S 3E1 - Sarnia, Lambton, Ontario
- N7S 3E2 - Sarnia, Lambton, Ontario
- N7S 3E3 - Sarnia, Lambton, Ontario
- N7S 3E4 - Sarnia, Lambton, Ontario
- N7S 3E5 - Sarnia, Lambton, Ontario
- N7S 3E6 - Sarnia, Lambton, Ontario
- N7S 3E7 - Sarnia, Lambton, Ontario
- N7S 3E8 - Sarnia, Lambton, Ontario
- N7S 3E9 - Sarnia, Lambton, Ontario
- N7S 3G1 - Sarnia, Lambton, Ontario
- N7S 3G2 - Sarnia, Lambton, Ontario
- N7S 3G3 - Sarnia, Lambton, Ontario
- N7S 3G4 - Sarnia, Lambton, Ontario
- N7S 3G5 - Sarnia, Lambton, Ontario