Lista regionu
- L1A 1X6 - Port Hope, Northumberland, Ontario
- L1A 1X7 - Port Hope, Northumberland, Ontario
- L1A 1X8 - Port Hope, Northumberland, Ontario
- L1A 1X9 - Port Hope, Northumberland, Ontario
- L1A 1Y1 - Port Hope, Northumberland, Ontario
- L1A 1Y2 - Port Hope, Northumberland, Ontario
- L1A 1Y3 - Port Hope, Northumberland, Ontario
- L1A 1Y4 - Port Hope, Northumberland, Ontario
- L1A 1Y5 - Port Hope, Northumberland, Ontario
- L1A 1Y6 - Port Hope, Northumberland, Ontario
- L1A 1Y7 - Port Hope, Northumberland, Ontario
- L1A 1Y8 - Port Hope, Northumberland, Ontario
- L1A 1Y9 - Port Hope, Northumberland, Ontario
- L1A 1Z1 - Port Hope, Northumberland, Ontario
- L1A 1Z2 - Port Hope, Northumberland, Ontario
- L1A 1Z3 - Port Hope, Northumberland, Ontario
- L1A 1Z4 - Port Hope, Northumberland, Ontario
- L1A 1Z5 - Port Hope, Northumberland, Ontario
- L1A 1Z6 - Port Hope, Northumberland, Ontario
- L1A 1Z7 - Port Hope, Northumberland, Ontario