Find any 464- phone number in Illinois

The 464 area code in Illinois is a part of the North American Numbering Plan (NANP). The NANP is a system of numbering codes used for telecommunication and other related services throughout the US, Canada, and some Caribbean countries. It encompasses ten-digit telephone numbers, including a three-digit area code, a three-digit central office code, and a four-digit station number.

The 464 area code encompasses the greater Chicago metropolitan region of Illinois. It serves as an overlay on many of the earlier area codes in the region, such as 630, 708, 847, and 331. This means that the same geographic area (or a portion of it) is served by multiple area codes, and that ten-digit dialing is required to reach any telephone, regardless of its area code. The 464 area code was adopted in January 2020, making it one of the newer area codes in the NANP system in Illinois.