Region List
- L6E 1N6 - Markham, York, Ontario
- L6E 1N7 - Markham, York, Ontario
- L6E 1N8 - Markham, York, Ontario
- L6E 1N9 - Markham, York, Ontario
- L6E 1P1 - Markham, York, Ontario
- L6E 1P2 - Markham, York, Ontario
- L6E 1P3 - Markham, York, Ontario
- L6E 1P4 - Markham, York, Ontario
- L6E 1P5 - Markham, York, Ontario
- L6E 1P6 - Markham, York, Ontario
- L6E 1P7 - Markham, York, Ontario
- L6E 1P8 - Markham, York, Ontario
- L6E 1P9 - Markham, York, Ontario
- L6E 1R1 - Markham, York, Ontario
- L6E 1R2 - Markham, York, Ontario
- L6E 1R3 - Markham, York, Ontario
- L6E 1R4 - Markham, York, Ontario
- L6E 1R5 - Markham, York, Ontario
- L6E 1R6 - Markham, York, Ontario
- L6E 1R7 - Markham, York, Ontario