About this number
(773) 279-6021 is a landline based telephone number operated by Ameritech Illinois and is located in zip code 60618 in the city of Chicago, Illinois, which is in Cook County, and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 773, a Network Numbering Exchange (NXX - also known as a prefix) of 279 and a subscriber number of 6021. It has an Operating Company Number (OCN) of 9329. A Common Language Location Identifier (CLLI) of CHCGILIRDS0. As well as a Local access and transport area (LATA) of 358. It was first assigned for usage on 01/01/1901. Zip code 60618 has a population of 92,084 as of the 2010 census.