Find any 872- phone number in Illinois
The 872 area code is an area code used in the North American Numbering Plan (NANP). It is used for the entire state of Illinois. The 872 area code was created in 2009 as an overlay code to the existing 312, 773, and 847 area codes in the NANP. This overlay code system is used to handle increased call volume and account for population growth within a designated area by allowing two or more area codes to serve the same geographic region.
The 872 area code is also part of a regional numbering plan, meaning that the geographical area that it serves is included in a larger region referred to as the North American Numbering Plan (NANP). The NANP is used by the United States, Canada, some Caribbean nations as well as some US territories to standardize numbering plans for telecommunication transmission between them. That being said, it is understandable why an Illinois-specific area code 872 was implemented into the NANP.