About this number
(312) 445-0020 is a landline based telephone number operated by Level 3 Communications, LLC - and is located in zip code 60611 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 312, a Network Numbering Exchange (NXX - also known as a prefix) of 445 and a subscriber number of 0020. It has an Operating Company Number (OCN) of 6115. A Common Language Location Identifier (CLLI) of NOCLLIKNOWN. As well as a Local access and transport area (LATA) of 358. It was first assigned for usage on 09/27/2007. Zip code 60611 has a population of 28,718 as of the 2010 census.