About this number
(630) 554 is a landline based telephone number operated by Ameritech Illinois and is located in zip code 60543 in the city of Oswego, Illinois, which is in Kendall County, and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 630 and Network Numbering Exchange (NXX - also known as a prefix) of 554. It has an Operating Company Number (OCN) of 9329. A Common Language Location Identifier (CLLI) of OSWGILOSDS0. As well as a Local access and transport area (LATA) of 358. Zip code 60543 has a population of 36,156 as of the 2010 census.