Region List
- L6E 1R8 - Markham, York, Ontario
- L6E 1R9 - Markham, York, Ontario
- L6E 1S1 - Markham, York, Ontario
- L6E 1S2 - Markham, York, Ontario
- L6E 1S3 - Markham, York, Ontario
- L6E 1S4 - Markham, York, Ontario
- L6E 1S5 - Markham, York, Ontario
- L6E 1S6 - Markham, York, Ontario
- L6E 1S7 - Markham, York, Ontario
- L6E 1S8 - Markham, York, Ontario
- L6E 1S9 - Markham, York, Ontario
- L6E 1T1 - Markham, York, Ontario
- L6E 1T2 - Markham, York, Ontario
- L6E 1T3 - Markham, York, Ontario
- L6E 1T4 - Markham, York, Ontario
- L6E 1T5 - Markham, York, Ontario
- L6E 1T6 - Markham, York, Ontario
- L6E 1T7 - Markham, York, Ontario
- L6E 1T8 - Markham, York, Ontario
- L6E 1T9 - Markham, York, Ontario