Establish a local presence by purchasing a phone number in area code 331. Phone numbers in area code 331 are associated with the state of Illinois. There are currently at least 25 U.S. cities and 35 U.S. ZIP Codes associated with this telephone area code. In addition, there are at least 800 NXX's (the three-digit code that makes up digits 4-6 of a standard 10-digit U.S. phone number) available for use along with area code 331.
Phone numbers in area code 331 are associated with the state of Illinois.
The 331 area code currently has at least 25 cities in Illinois associated with it: Addison, IL; North Aurora, IL; Bartlett, IL; Batavia, IL; Bensenville, IL; Bloomingdale, IL; Bolingbrook, IL; Carol Stream, IL; Darien, IL; Downers Grove, IL; Elmhurst, IL; Glen Ellyn, IL; Glendale Heights, IL; Hanover Park, IL; Lisle, IL; Lombard, IL; Naperville, IL; Roselle, IL; Saint Charles, IL; Streamwood, IL; Villa Park, IL; West Chicago, IL; Westmont, IL; Wheaton, IL; and Woodridge, IL.
There are at least 35 U.S. ZIP codes associated with the area code 331 at this time (view all here).
The ZIP Code 60505 is the ZIP Code most frequently connected to the 331 area code. The 60505 ZIP Code is primarily associated with Kane County in the state of Illinois.
There are 5 counties associated with the 331 area code: Cook County; DuPage County; Kendall County; Kane County; Will County.
An NXX, which is also known as the a "central office code" or an "exchange", is the three-digit sequence that comprises digits 4-6 of a standard 10-digit U.S. phone number. The NXX is the second main part of a phone number that comes directly after the area code, e.g. (331)-422-xxxx.
Detailed information about area code 331 phone numbers. Establish a Illinois presence with a 331 number.