About this number
(773) 231 is a landline based telephone number operated by Level 3 Communications, LLC - and is located in the city of Chicgozn07, Illinois and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 773 and Network Numbering Exchange (NXX - also known as a prefix) of 231. It has an Operating Company Number (OCN) of 6115. A Common Language Location Identifier (CLLI) of ELGNIL32CM2. As well as a Local access and transport area (LATA) of 358. It was first assigned for usage on 09/08/2011.