When Empire Carpet Co.’s catchy jingle in one of its ads suggested that you dial them at 588-2300, it always went without saying that the number was in Chicago’s 312 area code. But when… ...

The latest area code switch in the Chicago vicinity goes into effect formally Saturday as the three-month grace period ends for the 312-to-773 transition. The new 773 area code no longer is an opti… ...

According to a recent study by background check company BeenVerified, Chicago's "773" area code was ranked as the worst area code in the state for scam calls.

The city of Chicago outside the greater downtown area was split off into the 773 area code in 1996. Some Chicago city numbers are also now issued under the 872 area code.

Which area code in the Chicago area gets the most and how can you stop them? NBC 5 Investigates. In Antioch, Illinois, Linda Hensgen’s quiet life of retirement keeps getting interrupted.

The additional area code will be issued starting Friday in the 708 area code region, which covers Chicago’s south and near west suburbs.