Newmarket, ON Area Codes
Newmarket is served by area codes 289 and 905. It is in Ontario.
| Field | Value |
|---|---|
| Area code(s) | 289, 905 |
| State / province | Ontario |
| ZIP codes | — |
| Time zone | Eastern |
| Coordinates | 44.0501, -79.4663 |
What area code is Newmarket in?
Nearby towns and their area codes
Richmond Hill 289, 905Keswick 289, 905Markham 289, 905Uxbridge 289, 905Pickering 289, 905Toronto 416, 437, 647Ajax 289, 905Barrie 249, 705
How to dial
Dial 289 + 7 digits for a number in Newmarket, or +1 289 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.