About this number
(309) 522 is a landline based telephone number operated by Cambridge Telephone Co. and is located in zip code 61274 in the city of Osco, Illinois, which is in Henry County, and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 309 and Network Numbering Exchange (NXX - also known as a prefix) of 522. It has an Operating Company Number (OCN) of 983. A Common Language Location Identifier (CLLI) of OSCOILXDDS0. As well as a Local access and transport area (LATA) of 634. Zip code 61274 has a population of 351 as of the 2010 census.