About this number
(815) 499 is a wireless/mobile based telephone number operated by United States Cellular Corp. - and is located in zip code 61081 in the city of Sterling, Illinois, which is in Whiteside 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 499. It has an Operating Company Number (OCN) of 6265. A Common Language Location Identifier (CLLI) of STNGILANAMD. As well as a Local access and transport area (LATA) of 364. Zip code 61081 has a population of 21,934 as of the 2010 census.