Lista regionu
- N1A 1J7 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1J8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1K2 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1K3 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1K4 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1K5 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1K6 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1K8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1K9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1L1 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1L2 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1L3 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1L4 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1L5 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1L6 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1L7 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1L8 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1L9 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1M1 - Dunnville, Haldimand-Norfolk, Ontario
- N1A 1M2 - Dunnville, Haldimand-Norfolk, Ontario