About this number
(630) 931 is a landline based telephone number operated by Teleport Communications Americ and is located in zip code 60523 in the city of Oak Brook, Illinois, which is in Dupage 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 931. It has an Operating Company Number (OCN) of 7136. A Common Language Location Identifier (CLLI) of OKBRILOADC2. As well as a Local access and transport area (LATA) of 358. Zip code 60523 has a population of 9,890 as of the 2010 census.