About this number
(815) 525 is a landline based telephone number operated by Tds Metrocom Inc.-Il and is located in zip code 53705 in the city of Madison, Illinois, which is in Dane 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 525. It has an Operating Company Number (OCN) of 2320. A Common Language Location Identifier (CLLI) of MDSNWIKWDS0. As well as a Local access and transport area (LATA) of 354. Zip code 53705 has a population of 23,494 as of the 2010 census.