Who called from 5102138979

These b*st*rds just called 3 times in a row with the usual hangup after 2-3 rings - guess they're ramping up the 'stupid quotient'. Of course it's a non-working #, just a rapid busy.
BLOCK

These stupid people keep calling ,n they even don't care to leave a message..Then why to disturb someone so much????

scam callers

They are telemarketers, call 3 times and don't leave a message, just want to get their quota.  Don't answer them!

Called and no message. Spam ??