Список региона
- L3B 1N3 - Welland, Niagara, Ontario
- L3B 1N4 - Welland, Niagara, Ontario
- L3B 1N5 - Welland, Niagara, Ontario
- L3B 1N6 - Welland, Niagara, Ontario
- L3B 1N7 - Welland, Niagara, Ontario
- L3B 1N8 - Welland, Niagara, Ontario
- L3B 1N9 - Welland, Niagara, Ontario
- L3B 1P1 - Welland, Niagara, Ontario
- L3B 1P2 - Welland, Niagara, Ontario
- L3B 1P3 - Welland, Niagara, Ontario
- L3B 1P4 - Welland, Niagara, Ontario
- L3B 1P5 - Welland, Niagara, Ontario
- L3B 1P6 - Welland, Niagara, Ontario
- L3B 1P7 - Welland, Niagara, Ontario
- L3B 1P8 - Welland, Niagara, Ontario
- L3B 1P9 - Welland, Niagara, Ontario
- L3B 1R1 - Welland, Niagara, Ontario
- L3B 1R2 - Welland, Niagara, Ontario
- L3B 1R3 - Welland, Niagara, Ontario
- L3B 1R4 - Welland, Niagara, Ontario