Boulder Phone Numbers

Telephone numbers of Boulder

Boulder is part of the Colorado region. The area code for Boulder is 130344 and the calling code [email protected] is +1. The Boulder phone number format is +1 303-44X-XXXX.

Every city of Colorado has a different prefix that is used for fixed lines. Back in the old days, when someone wanted to call a person from another city, theyshould first dial the prefix code of that area.

For mobile phones, you don't need to specify the area code of Boulder, but when you want to call a fixed line number, you should first type the area code.In case of Boulder you dial first +130344.

This tool can be used if you want to have a list of Boulder random phone numbers that can be used for unit tests or in case you need some placeholders.