About this number
(309) 523 is a landline based telephone number operated by Citizens Telecom Co Illinois-F and is located in zip code 61275 in the city of Port Byron, Illinois, which is in Rock Island 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 523. It has an Operating Company Number (OCN) of 1183. A Common Language Location Identifier (CLLI) of PTBYILXDDS0. As well as a Local access and transport area (LATA) of 634. Zip code 61275 has a population of 4,347 as of the 2010 census.