Question 1

What is the area code for Hamilton?

Accepted Answer

The main area code for Hamilton, Ontario is 905. Hamilton is now served by 4 area codes in total: 905, 289, 365, 742.

Question 2

How many area codes does Hamilton have?

Accepted Answer

Hamilton has 4 area codes: 905, 289, 365, 742.

Question 3

Why does Hamilton have more than one area code?

Accepted Answer

As Hamilton used up the numbers available in its original area code (905, in service since 1993), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.

Question 4

How do you dial a Hamilton number?

Accepted Answer

Dial all 10 digits — the area code (905 or 289 or 365 or 742) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.

Area codes in Hamilton, Ontario

Area codes serving Hamilton

Nearby cities