Region List
- L7K 1R4 - Alton, Peel, Ontario
- L7K 1R5 - Alton, Peel, Ontario
- L7K 1S4 - Alton, Peel, Ontario
- L7K 1S5 - Alton, Peel, Ontario
- L7K 1S6 - Alton, Peel, Ontario
- L7K 1S9 - Alton, Peel, Ontario
- L7K 1T1 - Alton, Peel, Ontario
- L7K 1T8 - Alton, Peel, Ontario
- L7K 1T9 - Alton, Peel, Ontario
- L7K 1V1 - Alton, Peel, Ontario
- L7K 1V2 - Alton, Peel, Ontario
- L7K 1V7 - Alton, Peel, Ontario
- L7K 1V8 - Alton, Peel, Ontario
- L7K 1V9 - Alton, Peel, Ontario
- L7K 1W1 - Alton, Peel, Ontario
- L7K 2N7 - Alton, Peel, Ontario
- L7K 2N6 - Alton, Peel, Ontario
- L7K 2P1 - Alton, Peel, Ontario
- L7K 2P9 - Alton, Peel, Ontario