क्षेत्र सूची
- L3K 1W3 - Port Colborne, Niagara, Ontario
- L3K 1W4 - Port Colborne, Niagara, Ontario
- L3K 1W5 - Port Colborne, Niagara, Ontario
- L3K 1W6 - Port Colborne, Niagara, Ontario
- L3K 1W7 - Port Colborne, Niagara, Ontario
- L3K 1W8 - Port Colborne, Niagara, Ontario
- L3K 1W9 - Port Colborne, Niagara, Ontario
- L3K 1X1 - Port Colborne, Niagara, Ontario
- L3K 1X2 - Port Colborne, Niagara, Ontario
- L3K 1X3 - Port Colborne, Niagara, Ontario
- L3K 1X4 - Port Colborne, Niagara, Ontario
- L3K 1X5 - Port Colborne, Niagara, Ontario
- L3K 1X6 - Port Colborne, Niagara, Ontario
- L3K 1X8 - Port Colborne, Niagara, Ontario
- L3K 1X7 - Port Colborne, Niagara, Ontario
- L3K 1X9 - Port Colborne, Niagara, Ontario
- L3K 1Y1 - Port Colborne, Niagara, Ontario
- L3K 1Y2 - Port Colborne, Niagara, Ontario
- L3K 1Y3 - Port Colborne, Niagara, Ontario
- L3K 1Y4 - Port Colborne, Niagara, Ontario