M3 — 9 codes dans 9 localités (Canada).
| Code postal | Localité / Quartier | Zone administrative | Coordonnées |
|---|---|---|---|
| North York (York Heights / Victoria Village / Parkway East) | North York · Ontario | 43.7545, -79.33 | |
| Don Mills North | Don Mills · Ontario | 43.745, -79.359 | |
| Don Mills South (Flemingdon Park) | Don Mills · Ontario | 43.7334, -79.3329 | |
| North York (Armour Heights / Wilson Heights / Downsview North) | North York · Ontario | 43.7535, -79.4472 | |
| North York (Northwood Park / York University) | North York · Ontario | 43.7694, -79.4921 | |
| Downsview East (CFB Toronto) | Toronto · Ontario | 43.739, -79.4692 | |
| Downsview West | Downsview · Ontario | 43.7334, -79.5116 | |
| Downsview Central | Downsview · Ontario | 43.7319, -79.4928 | |
| North York (Jane and Finch) | North York · Ontario | 43.7568, -79.521 |