Список региона
- L3B 1R5 - Welland, Niagara, Ontario
- L3B 1R6 - Welland, Niagara, Ontario
- L3B 1R7 - Welland, Niagara, Ontario
- L3B 1R8 - Welland, Niagara, Ontario
- L3B 1R9 - Welland, Niagara, Ontario
- L3B 1S1 - Welland, Niagara, Ontario
- L3B 1S2 - Welland, Niagara, Ontario
- L3B 1S3 - Welland, Niagara, Ontario
- L3B 1S4 - Welland, Niagara, Ontario
- L3B 1S5 - Welland, Niagara, Ontario
- L3B 1S6 - Welland, Niagara, Ontario
- L3B 1S7 - Welland, Niagara, Ontario
- L3B 1S8 - Welland, Niagara, Ontario
- L3B 1S9 - Welland, Niagara, Ontario
- L3B 1T1 - Welland, Niagara, Ontario
- L3B 1T2 - Welland, Niagara, Ontario
- L3B 1T3 - Welland, Niagara, Ontario
- L3B 1T4 - Welland, Niagara, Ontario
- L3B 1T6 - Welland, Niagara, Ontario
- L3B 1T7 - Welland, Niagara, Ontario