Baltimore Area Codes

Baltimore, along with the entire state of Maryland, used to only have one Area Code: 301. As the population increased and more phone numbers were claimed, additional Area Codes were needed.

In 1991, the 410 Area Code was introduced and used to serve the Baltimore area. Within 5 years, even more Area Codes were required to keep up with the ongoing demand for more numbers.

Check out the list of current Baltimore Area Codes below. You can also click any of them to start your own phone number search.

Reverse Phone Lookup With A Baltimore Area Code

Clicking any of the Area Codes on this page will open a reverse phone lookup form with the first three digits automatically filled in. Simply enter the 7-digit local phone number to begin.


A reverse phone lookup can help you identify a number you didn’t recognize from the Baltimore area. You’ll get a report that shows you who owns the number and provides other useful information about them.

Reverse phone searches can also help you find people. When you order a report, you’ll get a list of everyone who owned those digits during the last 4 decades. Look for the name of the person you want to find. You’ll also see their most recent contact information, such as a phone number and address.

Need more information about a Baltimore Area Code and phone number? Get all the facts today from


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