Regionlista
- L3X 1W5 - Newmarket, York, Ontario
- L3X 1W6 - Newmarket, York, Ontario
- L3X 1W7 - Newmarket, York, Ontario
- L3X 1W8 - Newmarket, York, Ontario
- L3X 1W9 - Newmarket, York, Ontario
- L3X 1X1 - Newmarket, York, Ontario
- L3X 1X2 - Newmarket, York, Ontario
- L3X 1X3 - Newmarket, York, Ontario
- L3X 1X4 - Newmarket, York, Ontario
- L3X 1X5 - Newmarket, York, Ontario
- L3X 1X6 - Newmarket, York, Ontario
- L3X 1X7 - Newmarket, York, Ontario
- L3X 1X8 - Newmarket, York, Ontario
- L3X 1X9 - Newmarket, York, Ontario
- L3X 1Y1 - Newmarket, York, Ontario
- L3X 1Y2 - Newmarket, York, Ontario
- L3X 1Y3 - Newmarket, York, Ontario
- L3X 1Y4 - Newmarket, York, Ontario
- L3X 1Y5 - Newmarket, York, Ontario
- L3X 1Y6 - Newmarket, York, Ontario