331 Area Code Cell Phones

This 331 page contains information about the (331) area code, located within the US. The 331 areacode is in IL.

According to NPA-NXX exchange data, here are the cities in -331-: Arlington Heights, Aurora, Chicago, Elmhurst, Hickory Hills, Northbrook, Oswego, Schaumburg and West Chicago

Phone numbers, especially cell phones, can easily be "ported" now, but here are the main carriers and cell companies for area code 331.

The state in which 331 is predominately located is: IL. There are additional area codes within IL, including: 217, 224, 302, 309, 312, 618, 630, 708, 773, 779, 815 and 847.

Did you know? Here are some other interesting tidbits about 331:

• Number of carriers: 9
• Number of NPA-NXX exchanges: 29
• Number of cities: 9 in 3 counties
• NANPA (Area) Codes on the web
• 331 on Wikipedia

To run a free reverse cell phone trace on a number in the 331 area code, search now!