Seznam oblastí
- L1B 1H7 - Newcastle, Durham, Ontario
- L1B 1H8 - Newcastle, Durham, Ontario
- L1B 1H9 - Newcastle, Durham, Ontario
- L1B 1J1 - Newcastle, Durham, Ontario
- L1B 1J2 - Newcastle, Durham, Ontario
- L1B 1J3 - Newcastle, Durham, Ontario
- L1B 1J4 - Newcastle, Durham, Ontario
- L1B 1J5 - Newcastle, Durham, Ontario
- L1B 1J6 - Newcastle, Durham, Ontario
- L1B 1J7 - Newcastle, Durham, Ontario
- L1B 1J8 - Newcastle, Durham, Ontario
- L1B 1J9 - Newcastle, Durham, Ontario
- L1B 1K1 - Newcastle, Durham, Ontario
- L1B 1K2 - Newcastle, Durham, Ontario
- L1B 1K3 - Newcastle, Durham, Ontario
- L1B 1K4 - Newcastle, Durham, Ontario
- L1B 1K5 - Newcastle, Durham, Ontario
- L1B 1K6 - Newcastle, Durham, Ontario
- L1B 1K7 - Newcastle, Durham, Ontario
- L1B 1K8 - Newcastle, Durham, Ontario