Where Is Area Code 410 Located?

Area code 410 covers Baltimore and surrounding areas in Maryland. It was activated in 1991 as an overlay of area code 301. Today it shares its territory with overlay codes 443 and 667. For the full picture, see all Maryland area codes.

Quick Facts: Area Code 410

State	Maryland
Primary city	Baltimore
Cities also served	Baltimore, Annapolis, Columbia, Towson, Salisbury, Glen Burnie, Ellicott City, Bel Air
Time zone	Eastern (UTC-5 / UTC-4 DST)
Year established	October 6, 1991
Original 1947 NPA?	No
Parent code	301
Overlay codes	443, 667
Currently in use?	Yes, actively assigned
Ten-digit dialing required?	Yes

Cities Served by Area Code 410

Area code 410 serves Baltimore metropolitan area and the Eastern Shore of Maryland, including the following cities and communities:

• Baltimore
• Annapolis
• Columbia
• Towson
• Salisbury
• Glen Burnie
• Ellicott City
• Bel Air

Nearby area codes covering the same broader region include: 301, 240, 227.

How to Get a 410 Phone Number

There are three ways to get a phone number with the 410 area code, each suited to a different need:

1. Buy from a premium-number specialist. Companies that hold curated inventories of specific area codes can sell you a 410 number directly, often with a one-time fee and ownership transferred to you (no recurring carrier fees). This is the option for picking a specific memorable number, or for getting an area code that most carriers won’t let you request. Browse our 410 inventory.
2. Sign up with a VoIP carrier. Voice-over-IP services (such as Google Voice, OpenPhone, Grasshopper, and many others) can typically provision a 410 number on request, especially for active overlay codes. You won’t usually get to pick the specific number, but you’ll get a working line in the area code. This is the cheapest option for anyone who doesn’t need a particular number.
3. Port an existing 410 number. If you already have a 410 phone number with another carrier, you can transfer it (port it) to a new service provider while keeping the number. This works for landlines, cell phones, and VoIP services, though landlines outside of Maryland sometimes can’t accept inbound ports of 410 numbers due to 911 routing rules.

Looking for a 410 number? 212areacode.com offers premium 410 numbers for Baltimore, Maryland — choose your number, port it to any carrier in 3–5 business days, and pay a one-time fee with no monthly charges. Browse available 410 numbers →

Frequently Asked Questions

Is the 410 area code still in use?
Yes. 410 is actively assigned to new phone lines in Baltimore metropolitan area and the Eastern Shore of Maryland.

What is the difference between 410 and 443?
Today they share the same geographic territory in Maryland. New phone lines in the area may be assigned either code. The two codes work identically for calling, billing, and service.

What is the parent area code of 410?
Area code 410 is an overlay of 301. Both codes serve the same region of Maryland.

Can I get a 410 number if I don't live in Maryland?
Yes. Phone numbers are no longer tied to a physical address. With VoIP service or a number broker, you can hold a 410 number from anywhere in the world. The number routes to whatever device or carrier you specify.

Is 410 a scam area code?
No. 410 is a legitimate, active area code for Baltimore metropolitan area and the Eastern Shore of Maryland. Like any area code, scammers occasionally spoof 410 caller IDs, but the code itself is heavily used by real Maryland businesses, government offices, and residents.

What cities does the 410 area code cover?
Area code 410 covers Baltimore, Annapolis, Columbia, Towson, Salisbury, Glen Burnie, Ellicott City, and many other cities across the Baltimore metropolitan area and Maryland’s Eastern Shore.

What are the overlay codes for area code 410?
Area code 410 has two overlays: 443 (added July 1, 1997) and 667 (added March 24, 2012). All three codes serve the identical geographic region in eastern Maryland, and ten-digit dialing is required for all local calls.

When did area code 410 start?
Area code 410 officially entered service on October 6, 1991, when it was split from Maryland’s original statewide area code, 301.

Do I need to dial ten digits when calling a 410 number locally?
Yes. Because area code 410 shares its territory with overlays 443 and 667, ten-digit dialing (area code + seven-digit number) is mandatory for all local calls within the region.

Related Reading

• How Many Area Codes Are In the US?
• Who Invented Area Codes?
• Why Use Area Codes For Local Calls?
• What States Have the Most Area Codes?

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