क्षेत्र सूची
- L4P 2Z8 - Keswick, York, Ontario
- L4P 2Z9 - Keswick, York, Ontario
- L4P 3A1 - Keswick, York, Ontario
- L4P 3A2 - Keswick, York, Ontario
- L4P 3A3 - Keswick, York, Ontario
- L4P 3A4 - Keswick, York, Ontario
- L4P 3A5 - Keswick, York, Ontario
- L4P 3A6 - Keswick, York, Ontario
- L4P 3A7 - Keswick, York, Ontario
- L4P 3A8 - Keswick, York, Ontario
- L4P 3A9 - Keswick, York, Ontario
- L4P 3B1 - Keswick, York, Ontario
- L4P 3B3 - Keswick, York, Ontario
- L4P 3B2 - Keswick, York, Ontario
- L4P 3B5 - Keswick, York, Ontario
- L4P 3B4 - Keswick, York, Ontario
- L4P 3B6 - Keswick, York, Ontario
- L4P 3B7 - Keswick, York, Ontario
- L4P 3B8 - Keswick, York, Ontario
- L4P 3B9 - Keswick, York, Ontario