Maryland · Area code
Area Code 240Frederick, MD
Area code 240 is in Maryland, United States, and serves Frederick, Rockville, Gaithersburg, Hagerstown and Cumberland and other places nearby. Its time zone is Eastern Time.
Area code 240 at a glance
- Area code
- 240
- Main place
- Frederick, MD
- State
- Maryland
- Country
- 🇺🇸 United States
- Country calling code
- +1
- Time zone
- Eastern Time (America/New_York)
- Dial from abroad
- +1 240 XXX XXXX
- Dial inside the US and Canada
- 1 240 XXX XXXX
Cities and places in area code 240
The places phone numbers beginning 240 were issued in, the most common first.
- Frederick, MD
- Rockville, MD
- Gaithersburg, MD
- Hagerstown, MD
- Cumberland, MD
- Germantown, MD
- Joint Base Andrews Naval Air Facility, MD
- Laurel, MD
Look up a 240 number
Enter a full number with area code 240: it shows the line type, place, network and time zone, and every way to write it. Free and private.
Area code 240: frequently asked questions
Where is area code 240?
Area code 240 is in Maryland, United States. It serves places including Frederick, Rockville, Gaithersburg, Hagerstown, Cumberland, Germantown, Joint Base Andrews Naval Air Facility and Laurel.
What time zone is area code 240 in?
Area code 240 is on Eastern Time. A number with this area code can belong to someone living anywhere, so the time zone tells you where the number was issued rather than where the person is.
Which country is area code 240 in?
Area code 240 belongs to the United States, part of the North American Numbering Plan. Country code +1 is shared by the United States, Canada and many Caribbean and Pacific countries; the area code decides which one a number is in.
How do I call a 240 number from another country?
Dial your country's international access code (or press + on a mobile phone), then 1, then 240, then the seven-digit number: +1 240 followed by the number. Inside the United States and Canada, dial 1 and the ten digits.
Can I tell who is calling from an area code?
No. The area code only shows where a number was first issued. People keep their numbers when they move, mobile numbers work anywhere, and callers can disguise the number they call from. To see what the numbering plan says about a specific number, use the free phone number lookup.
What other area codes are in Maryland?
Other area codes in Maryland include 227, 301, 410, 443 and 667.