Lista regionu
- L3M 0A1 - Grimsby, Niagara, Ontario
- L3M 0A2 - Grimsby, Niagara, Ontario
- L3M 0A3 - Grimsby, Niagara, Ontario
- L3M 0A4 - Grimsby, Niagara, Ontario
- L3M 0A5 - Grimsby, Niagara, Ontario
- L3M 0A6 - Grimsby, Niagara, Ontario
- L3M 0A7 - Grimsby, Niagara, Ontario
- L3M 0A8 - Grimsby, Niagara, Ontario
- L3M 0A9 - Grimsby, Niagara, Ontario
- L3M 0B1 - Grimsby, Niagara, Ontario
- L3M 0B2 - Grimsby, Niagara, Ontario
- L3M 0B4 - Grimsby, Niagara, Ontario
- L3M 0B5 - Grimsby, Niagara, Ontario
- L3M 0B6 - Grimsby, Niagara, Ontario
- L3M 0B7 - Grimsby, Niagara, Ontario
- L3M 0B8 - Grimsby, Niagara, Ontario
- L3M 0B9 - Grimsby, Niagara, Ontario
- L3M 0C1 - Grimsby, Niagara, Ontario
- L3M 0C2 - Grimsby, Niagara, Ontario
- L3M 0C3 - Grimsby, Niagara, Ontario