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Sent TeamMar 8, 2026 / area code / Article

Area Code 410: Maryland Cities, Coverage, and Telecommunication Insights

Area code 410 serves eastern Maryland, including Baltimore & the Eastern Shore. Explore its cities, carriers (Verizon, Comcast), & NANPA regulatory details. Introduced in 1991, 410 faces projected numbering exhaustion by 2030, using overlays 443/667. Ten-digit dialing is mandatory.

Frequently Asked Questions

What area code is Baltimore, Maryland?

When was area code 410 created in Maryland?

Why was area code 410 introduced in Maryland?

What is the projected exhaust date for area code 410?

What area codes are overlaid on area code 410?

What major cities are covered by area code 410 in Maryland?

What major telecommunication carriers operate within area code 410?

What types of phone services are available in area code 410?

Which organization regulates area code 410?

What was the original area code for Maryland before 410?

When was area code 443 overlaid on 410?

When was the 667 area code added to the 410/443 overlay?

How many telephone numbers are available within area code 410?

Is ten-digit dialing required for local calls in area code 410?

What area code is Baltimore Maryland?

How many phone numbers are in area code 410?

What is area code 410 in Maryland?

When was area code 410 created?

Why does Maryland have multiple area codes?

How to dial a 410 number?

What cities are covered by area code 410?

What counties use area code 410 in MD?

Who regulates area code 410?

When should I use 10-digit dialing for 410?

What area codes overlap with 410 in Maryland?