Region List
- L3P 1J9 - Markham, York, Ontario
- L3P 1K1 - Markham, York, Ontario
- L3P 1K2 - Markham, York, Ontario
- L3P 1K3 - Markham, York, Ontario
- L3P 1K4 - Markham, York, Ontario
- L3P 1K5 - Markham, York, Ontario
- L3P 1K6 - Markham, York, Ontario
- L3P 1K7 - Markham, York, Ontario
- L3P 1K8 - Markham, York, Ontario
- L3P 1K9 - Markham, York, Ontario
- L3P 1L1 - Markham, York, Ontario
- L3P 1L2 - Markham, York, Ontario
- L3P 1L4 - Markham, York, Ontario
- L3P 1L5 - Markham, York, Ontario
- L3P 1L6 - Markham, York, Ontario
- L3P 1L7 - Markham, York, Ontario
- L3P 1L8 - Markham, York, Ontario
- L3P 1L9 - Markham, York, Ontario
- L3P 1M1 - Markham, York, Ontario
- L3P 1M2 - Markham, York, Ontario