Numbers with this prefix were first introduced in 1997.While 6183551100 was originally issued with the info above, the owner of the phone number (618) 355-1100 may have transferred it through a process called porting.
Caller name: Claims name is Bryan
Caller type: Scammer/Fraudster
Voicemail message said "Hi, this is Bryan calling you back about making $700 into $700,000. Just call the number on your caller ID or call 618-355-1100. You'll be glad you did". SCAM! Reported to FTC & IC3 dot GOV