What Is Area Code 410?
Area code 410 is a telephone area code serving eastern Maryland, including Baltimore, Annapolis, the Baltimore metropolitan area, and communities across Maryland's Eastern Shore. Major population centers include Baltimore, Columbia, Glen Burnie, Ellicott City, Dundalk, Annapolis, Salisbury, and Towson. The region also uses 443 and 667 as overlay area codes.
Area code 410 was introduced in 1991 after Maryland's original 301 area code was split. It was created to provide additional numbering capacity for Baltimore and eastern Maryland as demand for telephone numbers increased.
- State: Maryland
- Primary City: Baltimore
- Major Cities: Baltimore, Annapolis, Columbia, Salisbury, Glen Burnie, Ellicott City, Dundalk, Towson
- Time Zone: Eastern Time (ET)
- Established: 1991
- Overlay Area Codes: 443 and 667
- Region: Eastern Maryland
- Primary Uses: Residential phone service, mobile numbers, business phone numbers, healthcare, government, finance, education, tourism, logistics, retail, and professional services
What Time Zone Is Area Code 410 In?
Area code 410 is entirely within the Eastern Time Zone (ET).
- Eastern Standard Time (EST): UTC−5
- Eastern Daylight Time (EDT): UTC−4 during daylight saving time
The time zone applies throughout the 410 service region, including Baltimore, Annapolis, Columbia, Salisbury, and communities along the Eastern Shore.
Population & Demographics of Area Code 410
Area code 410 covers a large portion of eastern Maryland, including the Baltimore metropolitan area and Eastern Shore communities. Because telephone boundaries do not exactly match Census county boundaries, there is no single official Census population figure for the entire 410 service area.
Current area-code data estimates that the 410/443/667 geographic region serves more than 4.3 million residents. Baltimore City, the area's largest urban center, had an estimated 569,997 residents in 2025.
The region combines Baltimore's dense urban population with suburban communities around Annapolis and the Washington-Baltimore corridor and smaller coastal communities on the Eastern Shore.
- Estimated Population: Approximately 3.2 million people
- Region: Eastern Maryland, including Baltimore, Annapolis, and the Eastern Shore
- Average Household Size: Approximately 2.5 people
- Gender Distribution: Approximately 51.66% are female and 48.34% male.
- Population Density: Highest in Baltimore City and densely developed communities in Baltimore, Anne Arundel, Howard, and Harford counties
- Largest Population Centers: Baltimore, Columbia, Glen Burnie, Ellicott City, Dundalk, Towson, Annapolis, Salisbury, and Severn
- Age Distribution: Baltimore City has 20.9% of residents under 18 and 15.3% aged 65 or older. The age profile varies considerably across the broader 410 region.
- Major Industries: Healthcare, biotechnology, government, education, finance, logistics, manufacturing, tourism, maritime industries, retail, and professional services
County and City Covered by Area Code 410
Area code 410 serves communities across eastern Maryland, including Baltimore City and portions or all of counties throughout central and Eastern Shore Maryland.
Here are the major counties and communities covered by Area Code 410:
History & Background of Area Code 410
Area code 410 was introduced in 1991 as a geographic split from Maryland's original statewide area code 301. It was created to address the growing demand for telephone numbers in eastern Maryland, including Baltimore, Annapolis, and the Eastern Shore.
As demand continued to increase, overlay area codes 443 and 667 were later introduced to provide additional numbers without requiring existing customers to change their area codes.
- 1991: Area code 410 was introduced on October 6, 1991, as a split from area code 301, which had originally served the entire state of Maryland. The new code became the second area code assigned to Maryland.
- Reason for the Split: Growing population, businesses, mobile phones, fax machines, and other telecommunications services increased demand for telephone numbers, putting pressure on the existing 301 numbering area.
- 1997: Area code 443 was introduced as an overlay to 410, allowing additional phone numbers to be assigned throughout the same geographic region without changing existing 410 numbers.
- 2012: Area code 667 was added as a second overlay to the 410 and 443 service area to provide additional numbering capacity as demand continued to grow.
- Current Coverage: Area code 410 primarily serves eastern Maryland, including Baltimore, Annapolis, Columbia, Salisbury, Ocean City, and communities across the Eastern Shore.
Why Local Numbers Build Trust
A recognizable 410 number gives customers immediate geographic context when a business serving Baltimore or eastern Maryland calls them.
- Higher Call Pickup Rates: A recognizable 410 caller ID can make a business call appear relevant to customers in Baltimore, Annapolis, Salisbury, and surrounding communities. The area code is one factor that can influence whether someone answers, but it does not guarantee a higher pickup rate.
- Build Local Credibility: A 410 number can reinforce a business's connection to Maryland's eastern region. This is particularly useful for businesses whose customer base is concentrated in Baltimore, Annapolis, or the Eastern Shore.
- Support Consistent Local Search Information: Using the same business phone number across a website, business listings, and directories helps maintain consistent contact information. The area code itself should not be presented as a guaranteed local SEO ranking factor.
- Establish Familiarity Before the Call: A 410 caller ID gives customers geographic context before they answer. Pairing the number with an identifiable business name and accurate caller-ID information makes it easier for legitimate callers to be recognized.
Benefits of Using GoodCall for 410 Area Code Businesses
Businesses across eastern Maryland handle calls for appointments, service requests, estimates, reservations, sales inquiries, and customer questions. GoodCall combines a local business number with an AI phone agent that can answer calls, capture information, schedule appointments, and transfer calls when human assistance is needed.
- 24/7 AI Call Answering With a Voice Agent: A voice agent can answer incoming calls around the clock, including after business hours, weekends, and periods when employees are already handling other customers. Goodcall's AI answering service is designed for conversational phone interactions rather than traditional IVR menus.
- Intelligent Lead Capture & Qualification: An AI phone agent can collect caller information, identify the reason for the call, qualify inquiries, and route relevant information into configured business workflows.
- Automated Appointment Booking: An AI answering service can handle appointment requests based on the business's configured scheduling workflow. This is particularly relevant for healthcare, home services, salons, professional services, and other appointment-driven businesses.
- CRM & Calendar Integration: GoodCall supports integrations with calendars, CRMs, and other business workflows, allowing call information to move into existing systems instead of requiring employees to manually record every inquiry.
- Full Call Recording & Analytics: GoodCall provides call recordings and call analysis so businesses can review conversations, understand caller requests, and track inbound call activity.
How to Get a 410 Area Code Phone Number With GoodCall
Businesses serving Baltimore, Annapolis, and eastern Maryland can pair a local 410 number with GoodCall's AI phone agent.
- Create Your Account: Enter your business information and begin the setup process.
- Choose Your Plan: Select the plan based on your call volume and automation requirements.
- Complete KYC: Submit the required identity and business verification information.
- Choose a 410 Number: Select an available 410 number or port an eligible existing number.
- Configure Your AI Agent: Add business information, greetings, FAQs, call-handling rules, and escalation instructions.
- Connect Business Tools: Configure supported CRM, calendar, and workflow integrations.
- Test and Go Live: Test the call flow before activating the number.
Nearby Area Codes to 410
Area code 410 primarily serves eastern Maryland, including Baltimore, Annapolis, Columbia, and communities across the Eastern Shore.
Here are the nearby regions and their area codes:
