Baltimore Area Codes, Maryland, Unites States

How to call Baltimore, Maryland?

Baltimore has 3 area codes. To call Baltimore you need to dial the Unites States country code (+1) and one of the following area codes:

410 443 667

How to know if I'm receiving calls from Baltimore, Maryland?

You are receiving calls from Baltimore when the phone number starts with one of the following combinations:

1-410 1-443 1-667

Other area codes in Unites States