🇺🇸 United States · Maryland

Area code 301

Area code 301 is a telephone area code in Maryland, United States, covering Bethesda, Silver Spring, Gaithersburg, Rockville, Frederick, Hagerstown and more. Local time is UTC−5 (UTC−4 in summer). Numbers look like (301) 234-5678, or +1 301 234 5678 from abroad.

State: Maryland
Time zone: New York UTC−5 (UTC−4 in summer)
Local time now: –
Dial from abroad: +1 301

Places in area code 301

Cities and towns with telephone exchanges in the 301 area code, most exchanges first.

Bethesda
Silver Spring
Gaithersburg
Rockville
Frederick
Hagerstown
Laurel
Waldorf
Temple Hills
Germantown
Bowie
Upper Marlboro
Cumberland
Lanham
Beltsville
Clinton
Oxon Hill
Fort Washington
Olney
Potomac
La Plata
Hyattsville
Greenbelt
Takoma Park

How to dial area code 301

Calling from	You dial
Inside the 301 area	301 234 5678 (10 digits)
Elsewhere in the US & Canada	1 301 234 5678
Any mobile phone, anywhere	+1 301 234 5678
UK, Europe, India and most countries	00 1 301 234 5678
Australia	0011 1 301 234 5678

Other area codes in Maryland

227 Maryland 240 Rockville, Frederick 410 Baltimore, Annapolis 443 Baltimore, Annapolis 667 Maryland

Area code 301: FAQ

Where is area code 301?

Area code 301 is in Maryland, United States and serves Bethesda, Silver Spring, Gaithersburg, Rockville, Frederick, Hagerstown. and other places

What time zone is area code 301 in?

Area code 301 is in the America/New_York time zone (UTC−5 (UTC−4 in summer)).

How do I call a 301 number from outside the US and Canada?

Dial your exit code (00 in most countries, or + on a mobile), then 1, then 301 and the seven-digit number. Example: +1 301 234 5678.

Is a call from area code 301 a scam?

Area code 301 is a regular North American area code, but caller ID can be spoofed: scammers often show local-looking numbers. Do not call back unknown numbers that ask for money or personal data, and check the number with the phone number validator to see whether it is valid and whether it is a mobile, landline or VoIP number.

Phone number API

Check 301 numbers in your app

numlookupapi checks any phone number worldwide in one request and returns validity, line type, carrier, location and every standard format as JSON.

Read the documentation

100 free requests every month. No credit card required.

GET https://api.numlookupapi.com/v1/validate/+13012345678

{
  "valid": true,
  "number": "12069220880",
  "local_format": "2069220880",
  "international_format": "+12069220880",
  "country_prefix": "+1",
  "country_code": "US",
  "country_name": "United States of America",
  "location": "Seattle",
  "line_type": "landline",
  "e164_format": "+12069220880",
  "national_format": "(206) 922-0880"
}