We have been getting these calls at our receptionist desk and they ask for random people then hang up when they find that person does not work here. Calls are coming from Kansas, New York and Arizona.

doing the reverse telephone lookup looks like its:

https://www.dobsearch.com/reverse-telephone/r ... num=20535590673

YMAX COMMUNICATIONS CORP KS

Probably building the reverse telephone lookup database.

http://www.ymaxcorp.com

These people have been calling every 15-30 minutes for the past week, asking for people that  don't work here... we're a 20 person company, and it's extremely annoying. Though it has a US number, I'm guessing the calls are from a call center elsewhere in the world. What a waste of time.

Just got a phone call from this number.  Had our Telcom trace it.  It's really unnerving what they do, call - ask for you by name - say  . . . something . . . - hang up. PITA