Region List
- K9H 4L6 - Peterborough, Peterborough, Ontario
- K9H 4L7 - Peterborough, Peterborough, Ontario
- K9H 4L8 - Peterborough, Peterborough, Ontario
- K9H 4L9 - Peterborough, Peterborough, Ontario
- K9H 4M1 - Peterborough, Peterborough, Ontario
- K9H 4M2 - Peterborough, Peterborough, Ontario
- K9H 4M3 - Peterborough, Peterborough, Ontario
- K9H 4M4 - Peterborough, Peterborough, Ontario
- K9H 4M5 - Peterborough, Peterborough, Ontario
- K9H 4M6 - Peterborough, Peterborough, Ontario
- K9H 4M7 - Peterborough, Peterborough, Ontario
- K9H 4M8 - Peterborough, Peterborough, Ontario
- K9H 4M9 - Peterborough, Peterborough, Ontario
- K9H 4N1 - Peterborough, Peterborough, Ontario
- K9H 4N2 - Peterborough, Peterborough, Ontario
- K9H 4N3 - Peterborough, Peterborough, Ontario
- K9H 4N4 - Peterborough, Peterborough, Ontario
- K9H 4N5 - Peterborough, Peterborough, Ontario
- K9H 4N6 - Peterborough, Peterborough, Ontario
- K9H 4N7 - Peterborough, Peterborough, Ontario