About this number
(815) 442 is a landline based telephone number operated by Tonica Telephone Co. and is located in zip code 61370 in the city of Tonica, Illinois, which is in La Salle County, and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 815 and Network Numbering Exchange (NXX - also known as a prefix) of 442. It has an Operating Company Number (OCN) of 1086. A Common Language Location Identifier (CLLI) of TONCILXADS0. As well as a Local access and transport area (LATA) of 358. Zip code 61370 has a population of 1,460 as of the 2010 census.