Area Code 240: Western Maryland / Montgomery County

Area code 240 is in Western Maryland / Montgomery County, Maryland. Numbers that start with 240 are based in Germantown, Rockville, Frederick.

Area code 240 covers Western Maryland / Montgomery County in Maryland. The primary cities served include Germantown, Rockville, Frederick.

Area code 240 is primarily associated with Germantown, along with Rockville, Frederick. It serves the broader Western Maryland / Montgomery County area.

Area code 240 is in Maryland (MD). Maryland has 5 area codes in total.

Area code 240 operates in the Eastern Time Zone. Keep this in mind when scheduling calls with contacts in the Western Maryland / Montgomery County area.

Yes, area code 240 is an overlay of area code 301. Both codes serve the same geographic area, Western Maryland / Montgomery County, and were introduced to meet growing demand for phone numbers. Because 240 is an overlay, 10-digit dialing is required for all local calls within the region.

Yes. Because 240 is an overlay sharing its territory with area code 301, 10-digit dialing, the full area code plus the 7-digit number, is required for all local calls within Western Maryland / Montgomery County.

No, area code 240 is a local geographic area code, not a toll-free number. Standard call charges apply based on your carrier plan. Toll-free area codes include 800, 833, 844, 855, 866, 877, and 888.

Businesses can get a local 240 phone number through Convirza's call tracking platform. A 240 number lets you track inbound calls from Western Maryland / Montgomery County, measure marketing ROI, and analyze conversation data to improve sales performance. Get started with $20 in credits, no credit card required.