Lista de região
- L3Y 1V9 - Newmarket, York, Ontario
- L3Y 1W1 - Newmarket, York, Ontario
- L3Y 1W2 - Newmarket, York, Ontario
- L3Y 1W3 - Newmarket, York, Ontario
- L3Y 1W4 - Newmarket, York, Ontario
- L3Y 1W5 - Newmarket, York, Ontario
- L3Y 1W6 - Newmarket, York, Ontario
- L3Y 1W7 - Newmarket, York, Ontario
- L3Y 1W8 - Newmarket, York, Ontario
- L3Y 1W9 - Newmarket, York, Ontario
- L3Y 1X1 - Newmarket, York, Ontario
- L3Y 1X2 - Newmarket, York, Ontario
- L3Y 1X3 - Newmarket, York, Ontario
- L3Y 1X4 - Newmarket, York, Ontario
- L3Y 1X5 - Newmarket, York, Ontario
- L3Y 1X6 - Newmarket, York, Ontario
- L3Y 1X7 - Newmarket, York, Ontario
- L3Y 1X8 - Newmarket, York, Ontario
- L3Y 1X9 - Newmarket, York, Ontario
- L3Y 1Y1 - Newmarket, York, Ontario