What Is Area Code 240?
Area Code 240 is a geographic telephone area code in the North American Numbering Plan (NANP) serving central, western, and southern Maryland. It covers major communities, including Silver Spring, Bethesda, Rockville, Gaithersburg, Germantown, Frederick, Hagerstown, Bowie, and Waldorf, as well as surrounding cities and towns.
Area Code 240 was introduced on June 1, 1997, as an overlay to Area Code 301 to accommodate the growing demand for residential, business, mobile, and VoIP telephone numbers. Today, 240, 301, and the newer 227 area code share the same geographic region, meaning new telephone numbers may be assigned any of these area codes. Because of the overlay system, 10-digit dialing is required for all local calls.
- State: Maryland
- Major Cities/Areas: Silver Spring, Bethesda, Rockville, Gaithersburg, Germantown, Frederick, Bowie, Hagerstown, Waldorf
- Major Counties: Montgomery, Prince George's, Frederick, Washington, Allegany, Charles, Calvert, Garrett, and St. Mary's
- Time Zone: Eastern Time Zone (ET)
- Established: June 1, 1997
- Overlay Area Codes: 301 and 227
- Region Population: Approximately 2.7 million residents
- Primary Uses: Residential, business, mobile, VoIP, and government phone numbers
What Time Zone Is Area Code 240 In?
The 240 area code is in the Eastern Time Zone (ET). It observes Eastern Standard Time (EST, UTC−5) during standard time and Eastern Daylight Time (EDT, UTC−4) during daylight saving time.
Businesses and residents using 240 follow the same local time as the rest of Maryland and nearby Washington, D.C.
Population & Demographics of Area Code 240
Area Code 240 serves one of Maryland's most populous and economically significant regions, covering communities across central and western Maryland. Depending on the counties included, the service area is home to more than 2.5 million residents.
The region is known for its highly educated workforce, diverse population, and strong economy driven by government agencies, biotechnology, healthcare, education, cybersecurity, and professional services. Its proximity to Washington, D.C. also makes it one of the country's leading hubs for federal contractors and research organizations.
- Estimated Population: Approximately 2.7 million residents
- Median Age: Approximately 38 years
- Average Household Size: Around 2.7 people
- Gender Distribution: Approximately 48.4% male and 51.6% female
- Population Density: Highest in Montgomery and Prince George's counties, with suburban and urban communities throughout the region
- Largest Population Centers: Silver Spring, Bethesda, Rockville, Gaithersburg, Germantown, Frederick, Bowie, Waldorf, Hagerstown, and Cumberland
- Major Industries: Biotechnology, healthcare, federal government, cybersecurity, education, aerospace, professional services, retail, logistics, and tourism
Counties and Cities Covered by Area Code 240
Area Code 240 serves central, western, and southern Maryland, covering communities across the Washington, D.C. metropolitan area. It shares the same geographic service area as Area Codes 301 and 227 and includes a mix of urban centers, suburban communities, and smaller towns.
Area Codes 240, 301, and 227 operate as overlays across the same geographic region, and 10-digit dialing is required for all local calls.
History & Background of Area Code 240
Area Code 240 was introduced on June 1, 1997, as Maryland’s first overlay area code. It was created to meet rising demand for phone numbers in western, central, and southern Maryland, particularly around the Washington, D.C. suburbs.
- 1947: Area Code 301 became Maryland’s original area code.
- 1991: Area Code 410 was split from 301 to serve eastern Maryland.
- 1997: Area Code 240 was added as an overlay to 301 due to growing demand for phone numbers.
- 2023: Area Code 227 was added as a second overlay to the same region.
- Today: Area Codes 240, 301, and 227 cover the same Maryland region, including Silver Spring, Bethesda, Rockville, Gaithersburg, Frederick, and Hagerstown.
Why Local Numbers Build Trust?
A 240 area code helps businesses connect with customers across Maryland using a familiar local identity. Whether you are serving homeowners, patients, students, or businesses, a local number makes your company easier to recognize and contact.
- Increase Answered Calls: A recognizable Maryland phone number may feel more trustworthy than an unfamiliar out-of-state number, encouraging more customers to answer.
- Strengthen Your Regional Presence: A 240 phone number signals a connection to communities such as Rockville, Silver Spring, Frederick, and Gaithersburg, even for businesses operating remotely.
- Support Local Marketing Efforts: Using the same 240 number across your website, Google Business Profile, ads, and directories creates a consistent local presence.
- Build Customer Confidence: A local phone number can make businesses feel more accessible and encourage calls, inquiries, appointments, and service requests.
GoodCall AI Phone Answering Service for 240 Area Code Businesses
A 240 area code gives your business a local presence in Maryland. With GoodCall, you also get an AI phone agent that answers calls, captures leads, schedules appointments, and routes callers to the right team.
- 24/7 AI Call Answering: GoodCall's AI voice agent answers every call, day or night. It handles common customer questions and ensures no call goes unanswered.
- Lead Capture & Qualification: The AI answering service collects caller details, qualifies leads, and routes enquiries to the appropriate team member.
- Appointment Scheduling: Customers can book, reschedule, or cancel appointments over the phone without waiting for staff assistance.
- CRM & Calendar Integration: Sync calls, contacts, and appointments with your CRM and calendar to keep business information up to date.
- Call Recording & Analytics: Review call recordings, transcripts, and analytics to monitor conversations and improve customer service.
How to Get a 240 Area Code Phone Number with GoodCall?
A 240 area code phone number helps businesses establish a local presence across central and western Maryland, including communities such as Bethesda, Rockville, Silver Spring, Frederick, and Gaithersburg.
Getting your 240 phone number with GoodCall is straightforward:
- Sign Up: Create your GoodCall account using your business information.
- Choose a Plan: Select the plan that best fits your business size, call volume, and automation requirements.
- Complete Verification: Verify your business's compliance with telecommunications regulations before your number is activated.
- Select Your Number: Choose an available 240 area code phone number from GoodCall's inventory.
- Configure Your AI Phone Agent: Personalize your AI phone agent with business hours, call routing, FAQs, appointment scheduling, and CRM or calendar integrations.
- Go Live: Once your setup is complete, your 240 phone number is ready to answer customer calls using GoodCall's AI-powered voice agent.
Nearby Area Codes to 240
Area Code 240 shares its service area with 301 and is surrounded by several neighbouring area codes serving Maryland, Washington, D.C., Northern Virginia, and nearby regions. Here are the nearby regions and their area codes:
