Area code 301 — who called you?
Numbers starting with 301 are assigned to Maryland (Silver Spring; Washington, D.C., suburbs; all counties which touch the Potomac River; Waldorf, Hagerstown, Frederick, Rockville, Cumberland; and land line telephones in western Maryland). Paste the full number below to see the caller's name, carrier and community spam reports — free and anonymous.
Area code 301 at a glance
- Area code
- 301
- Region
- Maryland
- Country
- United States
- Dial format
- +1 301 XXX XXXX
Assignment data from the North American Numbering Plan Administration (NANPA).
Got a call from 301? Here's what it means.
The three digits after the +1 country code identify the numbering plan area a number was issued in. For 301, that area is Maryland (Silver Spring; Washington, D.C., suburbs; all counties which touch the Potomac River; Waldorf, Hagerstown, Frederick, Rockville, Cumberland; and land line telephones in western Maryland). If you don't know anyone there, the call is more likely to be a business, a call centre or an automated dialer than a personal contact.
An area code alone can't tell you who is calling. Numbers are portable, and VoIP providers can issue a 301 number to a caller located anywhere in the world — a technique known as neighbour spoofing, where a familiar area code is used to make a call look local.
To identify the caller, run the full 10-digit number through a lookup. WhoCallsMe checks the number against carrier records, business directories and community spam reports, and shows the line type, carrier and reported risk.