Question 1

What is the area code for Baltimore?

Accepted Answer

The main area code for Baltimore, Maryland is 410. Baltimore is now served by 3 area codes in total: 410, 443, 667.

Question 2

How many area codes does Baltimore have?

Accepted Answer

Baltimore has 3 area codes: 410, 443, 667.

Question 3

Why does Baltimore have more than one area code?

Accepted Answer

As Baltimore used up the numbers available in its original area code (410, in service since 1991), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.

Question 4

How do you dial a Baltimore number?

Accepted Answer

Dial all 10 digits — the area code (410 or 443 or 667) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.

Area codes in Baltimore, Maryland

Area codes serving Baltimore

Nearby cities