Location: Illinois, Maryland Heights, Saint Louis County
Approximate number of phones: 1479
Carrier: Sprint Spectrum L.p.
Mr. Number records show that there are at least 4,400 active phone numbers with the prefix 618531 out of a possible 10,000. Numbers in this exchange are mainly mobile phones. Phone numbers beginning with 618-531 are allocated to Illinois, in particular Collinsville in Madison County and O Fallon in St. Clair County. Public records tell us that 48.50% (2,133) of subscribers are men and 51.50% (2,266) are women. Median household income in this part of the country is $51,623 and 69.49% of housing units are owner-occupied.