Area codes 708 and 464

Area codes 708 and 464 are telephone area codes in the North American Numbering Plan (NANP) for the southern and western suburbs of Chicago in the U.S. state of Illinois.

The Illinois side of the Chicago area–312/773/872, 708/464, 847/224, 630/331, and portions of 815/779–is one of the largest local calling areas in the United States; with few exceptions, no long-distance charges are levied from one portion of the metro area to another.

In 2020, 988 was designated nationwide as a dialing code for the National Suicide Prevention Lifeline, which created a conflict for exchanges that permit seven-digit dialing.

This area code was therefore scheduled to transition to ten-digit dialing by October 24, 2021.

[2] On June 30, 1999, area code 464 was reserved for future relief in 708.