Netnummers in Grenville
| Netnummer▲ | Stad↕ | Bestuursregio↕ | Inwonersaantal stad↕ | Land/regio | Tijdzone |
|---|---|---|---|---|---|
| 819 | — | Quebec (provincie) | 7,730,612 | Canada | America/Montreal |
Steden vlakbij
| Stad | Regio | Land | Bevolking | Netnummers | Postcodes |
|---|---|---|---|---|---|
| Brownsburg-Chatham | Quebec (provincie) | Canada | 6,664 | 450, 819 | J8G, J8H |
| Grenville-sur-la-Rouge | Quebec (provincie) | Canada | — | 819 | J0V |
| Hawkesbury | Ontario | Canada | 12,283 | 613 | K6A |
| Pointe-Fortune | Ontario | Canada | — | 450 | — |
| Vankleek Hill | Ontario | Canada | — | 613 | K0B |