H9B 3M4 is Canadian Postal Code located in Dollard-Des Ormeaux Quebec.
| Postal Code | H9B 3M4 |
| Forward Sortation Area | H9B |
| Name | Dollard-Des Ormeaux |
| Province | Quebec |
| Administrative Division | Montreal |
| Timezone | Eastern Daylight Time (EDT) |
| Area Code(s) | 438 / 514 |