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The 240 area code covers the highly dense, vital region of Central and Western Maryland, specifically the affluent suburbs of Washington, D.C., making it an essential choice for businesses seeking a credible local presence in the region’s key biotechnology, federal contracting, aerospace, and higher education centers.
Getting a 240 number helps companies build trust, improve call response rates, and connect more effectively with customers across Silver Spring, Bethesda, Gaithersburg, and the broader Montgomery and Prince George's County metropolitan areas. The 240 area code is a high-demand code for its region and serves as a primary identifier for the I-270 Technology Corridor and the surrounding suburban communities.
The 240 area code is a telephone area code in the North American Numbering Plan (NANP) serving a critical, high-density region of Western and Central Maryland. It primarily covers the affluent suburbs of Washington, D.C., encompassing a diverse mix of global biotechnology hubs, major federal research facilities, and thriving residential communities.
It covers the core of Montgomery, Prince George's, Frederick, and Allegany counties, including cities like Silver Spring, Bethesda, and Gaithersburg. The 240 area code was created in 1997 as an overlay to the original 301 area code, which was one of the first area codes established in the United States.
The 240 area code encompasses the core region of Western Maryland and the D.C. metropolitan suburbs, serving as a primary and historically significant area code for the region. This area includes major centers of government, science, and higher education and is overlaid by the 301 area code.
Here is a comprehensive breakdown of the major cities and areas covered by the 240 area code:
The 240 area code serves the core of Montgomery County, Maryland, which is a unique and high-value numbering plan area. As one of the most affluent and highly educated regions in the United States, the local economy is characterized by robust growth and significant commercial activity in the biotechnology and federal sectors.
Based on the analysis of Montgomery County, the median household income is $117,320, and the average per capita income is $63,015. The region's poverty rate stands at 7.3%.
Demographically, the population is distinctly diverse, with the racial composition of the area consisting of White residents at 40.52%, Black or African American residents at 18.06%, and Asian residents at 15.38%. Additionally, individuals identifying as two or more races make up 14.59% of the population, while other race groups account for 11.23%, and Native American or Pacific Islander residents represent 0.22%.
The 240 area code, which serves the core of Western and Central Maryland, is located entirely within the Eastern Time Zone (ET). This means that during standard time, the time zone is Eastern Standard Time (EST), which is UTC-5. During daylight saving time, the time zone is Eastern Daylight Time (EDT), which is UTC-4.
This time zone serves all the major hubs of the region, including Bethesda, Silver Spring, and Rockville. Maintaining Eastern Time ensures that local businesses remain synchronized with the federal government and the major financial and commercial markets of the East Coast, including New York and D.C.
The 240 area code adds local trust and credibility, making it valuable for local businesses. Here’s how a business number with the 240 area code is important for your business:
When customers see a local 240 area code number, they immediately recognize it as part of their community. This familiarity creates trust and reduces hesitation to answer calls. Research shows that consumers are more likely to pick up calls from numbers with local area codes compared to unfamiliar or out-of-state numbers.
For small businesses, using a local area code 240 number shows commitment to serving the community. For larger enterprises, it signals accessibility and helps build stronger relationships with regional customers.
Some well-known enterprises that would benefit from a local 240 number include:
The 240 area code provides a local caller ID that increases customer trust, making it easier for banks to confirm high-value transactions, issue fraud alerts, and manage communications with commercial and retail clientele across the Maryland suburbs.
The 240 area code helps Maryland’s world-class hospitals and research institutions reduce missed appointments and provides local, trusted lines for patient support, specialty care, and global health coordination.
The 240 code provides dedicated local service lines that improve coordination for regional transit, government logistics, and the complex supply chain infrastructure near the nation's capital.
The 240 code enables IT companies and federal contractors to offer localized sales, support, and deployment hotlines that businesses trust, especially within the "I-270 Technology Corridor."
The 240 area code offers local numbers for claims, underwriting, and customer assistance, enhancing trust and reducing response times for property and casualty insurance in the high-value Maryland market.
Setting up your 240 area code number with Goodcall is quick and straightforward. Here’s how it works:
Choosing Goodcall means more than just getting a local number; it means equipping your business with tools to handle calls efficiently.
With these advantages, Goodcall makes it easier for you to manage calls and focus on growing your business.
Our local 240 area code numbers come with affordable pricing plans designed to fit every business size. We offer flexible pricing options that scale with your needs, whether you’re a startup or an established enterprise. Additionally, you can save 30% on annual subscriptions, giving your business more value at a lower cost.
What is the 240 area code, and where is it located?
The 240 area code serves the central and western regions of Maryland, primarily covering the affluent suburbs of Washington, D.C. It represents one of the most economically significant and highly educated regions in the United States. It is an overlay for the original 301 area code.
What cities does the 240 area code cover?
The 240 area code covers several major cities and high-density suburban hubs across Maryland, including Silver Spring, Bethesda, and Rockville.
What time zone is area code 240 in?
The 240 area code, serving the Maryland suburbs of Washington, D.C., is in the Eastern Time Zone (ET).
Does the 240 area code get spam calls?
Like any area code, spam and robocalls do occur, but using a trusted business provider like Goodcall helps filter unwanted calls.
Which types of businesses benefit most from a local 240 number?
Local service providers, tech companies, restaurants, real estate agents, and startups benefit from a 240 number, as it boosts local trust and visibility.
How can I get a local 240 area code number for my business?
You can get a 240 number easily by signing up with Goodcall, choosing your plan, and selecting your preferred local number.
Can I forward calls from my 240 number elsewhere?
Yes. With Goodcall, you can forward calls to any phone, ensuring you never miss a customer inquiry.
How much does it cost to get a 240 area code number?
Goodcall plans are affordable and flexible, at $66 per month per agent annually.
Is the 240 area code toll-free?
No, 240 is not a toll-free area code. It’s a geographic code for Maryland, designed to give businesses a trusted local identity. Toll-free numbers in the US typically begin with prefixes such as 800, 888, 877, or 855.