Numbers with this prefix were first introduced in 1997.While 6183551943 was originally issued with the info above, the owner of the phone number (618) 355-1943 may have transferred it through a process called porting.
Caller type: Unknown
This caller continues to call often. I do not answer area codes I am not familiar with or numbers I do not know. Wish this person would stop calling. I am on the Do Not Call Registry but they continue to call anyway. Very annoying.