Who called from 2102102000

i get a call from this number almost once a week.. i don pick it up cos felt suspicious.. please find out who it is..

sir, me to received call from 2102102000,
but i didnot pick a call, did u get any information of this number

Me too got call from this number

A guy with a thick accent saying he is calling with the Computer Maintenance Department to work on your computers.  LOL ok buddy..you couldn't even come up with a good fake name. Ironically I work for a technology company so knew it was a fake call. I simply hung up on him.