Area code 521
Area code 521 is a telephone area code in the North American Numbering Plan. It serves NANP AREA, the United States.
- 521area code
- USNANP AREA
- UScountry
- 21-Sep-17in service
How to dial a 521 number
From within the United States and Canada, dial 1, then 521, then the seven-digit number. From another country, dial your international access code, then +1 521 and the seven-digit number.
Area code 521 covers the same territory as 500, 522, 523, 524, 525 and 526. When several area codes share one area like this, it is called an overlay.
Other area codes in NANP AREA
523, 524, 525, 526, 527, 529, 532, 538, 542
Frequently asked questions
Where is area code 521?
Area code 521 serves NANP AREA, the United States.
What is the country code for a 521 number?
Numbers with North American area codes use the country calling code +1.