Lista regionu
- L3M 1P4 - Grimsby, Niagara, Ontario
- L3M 1P5 - Grimsby, Niagara, Ontario
- L3M 1P6 - Grimsby, Niagara, Ontario
- L3M 1P7 - Grimsby, Niagara, Ontario
- L3M 1P8 - Grimsby, Niagara, Ontario
- L3M 1P9 - Grimsby, Niagara, Ontario
- L3M 1R1 - Grimsby, Niagara, Ontario
- L3M 1R2 - Grimsby, Niagara, Ontario
- L3M 1R3 - Grimsby, Niagara, Ontario
- L3M 1R4 - Grimsby, Niagara, Ontario
- L3M 1R5 - Grimsby, Niagara, Ontario
- L3M 1R6 - Grimsby, Niagara, Ontario
- L3M 1R7 - Grimsby, Niagara, Ontario
- L3M 1R8 - Grimsby, Niagara, Ontario
- L3M 1R9 - Grimsby, Niagara, Ontario
- L3M 1S1 - Grimsby, Niagara, Ontario
- L3M 1S2 - Grimsby, Niagara, Ontario
- L3M 1S3 - Grimsby, Niagara, Ontario
- L3M 1S4 - Grimsby, Niagara, Ontario
- L3M 1S5 - Grimsby, Niagara, Ontario