क्षेत्र सूची
- L3K 1M1 - Port Colborne, Niagara, Ontario
- L3K 1M2 - Port Colborne, Niagara, Ontario
- L3K 1M3 - Port Colborne, Niagara, Ontario
- L3K 1M4 - Port Colborne, Niagara, Ontario
- L3K 1M5 - Port Colborne, Niagara, Ontario
- L3K 1M6 - Port Colborne, Niagara, Ontario
- L3K 1M7 - Port Colborne, Niagara, Ontario
- L3K 1M8 - Port Colborne, Niagara, Ontario
- L3K 1M9 - Port Colborne, Niagara, Ontario
- L3K 1N1 - Port Colborne, Niagara, Ontario
- L3K 1N2 - Port Colborne, Niagara, Ontario
- L3K 1N4 - Port Colborne, Niagara, Ontario
- L3K 1N5 - Port Colborne, Niagara, Ontario
- L3K 1N6 - Port Colborne, Niagara, Ontario
- L3K 1N7 - Port Colborne, Niagara, Ontario
- L3K 1N8 - Port Colborne, Niagara, Ontario
- L3K 1N9 - Port Colborne, Niagara, Ontario
- L3K 1P1 - Port Colborne, Niagara, Ontario
- L3K 1P2 - Port Colborne, Niagara, Ontario
- L3K 1P3 - Port Colborne, Niagara, Ontario