क्षेत्र सूची
- N1A 3G7 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 3G8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 3G9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 3H1 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 3H2 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 3H3 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 3H5 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 3H4 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 3H6 - Dunnville, Haldimand-Norfolk, Ontario