Regiolijst
- L3B 1B3 - Welland, Niagara, Ontario
- L3B 1B4 - Welland, Niagara, Ontario
- L3B 1B5 - Welland, Niagara, Ontario
- L3B 1B6 - Welland, Niagara, Ontario
- L3B 1B7 - Welland, Niagara, Ontario
- L3B 1B8 - Welland, Niagara, Ontario
- L3B 1B9 - Welland, Niagara, Ontario
- L3B 1C1 - Welland, Niagara, Ontario
- L3B 1C2 - Welland, Niagara, Ontario
- L3B 1C3 - Welland, Niagara, Ontario
- L3B 1C4 - Welland, Niagara, Ontario
- L3B 1C5 - Welland, Niagara, Ontario
- L3B 1C6 - Welland, Niagara, Ontario
- L3B 1C7 - Welland, Niagara, Ontario
- L3B 1C8 - Welland, Niagara, Ontario
- L3B 1C9 - Welland, Niagara, Ontario
- L3B 1E1 - Welland, Niagara, Ontario
- L3B 1E2 - Welland, Niagara, Ontario
- L3B 1E3 - Welland, Niagara, Ontario
- L3B 1E4 - Welland, Niagara, Ontario