About this number
(312) 754 is a landline based telephone number operated by Tw Telecom Of Illinois LLC - I and is located in the city of Chicgozn01, Illinois and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 312 and Network Numbering Exchange (NXX - also known as a prefix) of 754. It has an Operating Company Number (OCN) of 138G. A Common Language Location Identifier (CLLI) of CHCGILCPDS9. As well as a Local access and transport area (LATA) of 358. It was first assigned for usage on 02/26/2013.