Regiolijst
- L3B 1T8 - Welland, Niagara, Ontario
- L3B 1T9 - Welland, Niagara, Ontario
- L3B 1V1 - Welland, Niagara, Ontario
- L3B 1V2 - Welland, Niagara, Ontario
- L3B 1V3 - Welland, Niagara, Ontario
- L3B 1V4 - Welland, Niagara, Ontario
- L3B 1V5 - Welland, Niagara, Ontario
- L3B 1V6 - Welland, Niagara, Ontario
- L3B 1V7 - Welland, Niagara, Ontario
- L3B 1V8 - Welland, Niagara, Ontario
- L3B 1V9 - Welland, Niagara, Ontario
- L3B 1W1 - Welland, Niagara, Ontario
- L3B 1W2 - Welland, Niagara, Ontario
- L3B 1W3 - Welland, Niagara, Ontario
- L3B 1W4 - Welland, Niagara, Ontario
- L3B 1W5 - Welland, Niagara, Ontario
- L3B 1W6 - Welland, Niagara, Ontario
- L3B 1W7 - Welland, Niagara, Ontario
- L3B 1W8 - Welland, Niagara, Ontario
- L3B 1W9 - Welland, Niagara, Ontario