Who called from 2103164803

Called - phone rang for less than 5 seconds and did not leave voicemail. -   similar pattern to a robocaller

Yeah it is a robo caller system to redeem a gift card. It is a fake number..  I already blocked the 2103164803 number

Rang my cell twice, and hung up. No message.
Spammers call me at the beginning of each week.
Likely another one.

RANG 3 TIMES AND HUNG UP BEFORE I ANSWERED.  THISIS HAPPENING MORE AND MORE

Rang twice and hung up.  Not going to call number back.