Kode Area di Markham
| Kode Area▲ | Kota↕ | Daerah Administratif↕ | Populasi Kota↕ | Negara/Wilayah | Zona Waktu |
|---|
| 780 | Edmonton | Alberta | 712,391 | Kanada | America/Edmonton |
| 905 | — | Ontario | 12,861,940 | Kanada | America/Toronto |
Kota Terdekat
| Kota | Wilayah | Negara | Populasi | Kode Area | Kode Pos |
|---|
| Pickering | Ontario | Kanada | 87,838 | 780, 905 | L0H, L1V, L1W, L1X |
| Scarborough | Ontario | Kanada | 600,000 | 780, 416, 905 | M1B, M1S, M1X, M1M |
| Stouffville | Ontario | Kanada | — | 780, 905 | L4A |
| Unionville | Ontario | Kanada | — | 905, 780 | L3P, L3R, L6G |
| Whitchurch-Stouffville | Ontario | Kanada | — | 780 | L0H, L0G, L3P, L3Y |