Regiolijst
- L3B 1K9 - Welland, Niagara, Ontario
- L3B 1L1 - Welland, Niagara, Ontario
- L3B 1L2 - Welland, Niagara, Ontario
- L3B 1L3 - Welland, Niagara, Ontario
- L3B 1L4 - Welland, Niagara, Ontario
- L3B 1L5 - Welland, Niagara, Ontario
- L3B 1L7 - Welland, Niagara, Ontario
- L3B 1L8 - Welland, Niagara, Ontario
- L3B 1L9 - Welland, Niagara, Ontario
- L3B 1M1 - Welland, Niagara, Ontario
- L3B 1M2 - Welland, Niagara, Ontario
- L3B 1M3 - Welland, Niagara, Ontario
- L3B 1M4 - Welland, Niagara, Ontario
- L3B 1M5 - Welland, Niagara, Ontario
- L3B 1M6 - Welland, Niagara, Ontario
- L3B 1M7 - Welland, Niagara, Ontario
- L3B 1M8 - Welland, Niagara, Ontario
- L3B 1M9 - Welland, Niagara, Ontario
- L3B 1N1 - Welland, Niagara, Ontario
- L3B 1N2 - Welland, Niagara, Ontario