Who called from 6172730337

I missed two calls from this number. When I checked no voice mail was left.

I had a similar experience on my work number in 604 area code.  Call was placed at 3am!

I've been receiving calls from this number in the middle of the night. No one speaking when phone is answered.
Called the number back. There is no one to talk to. The number belongs to www.fepsearchgroup.com - a mysterious recruiting firm.

receiving calls from this number at strange hours.  nobody there either?

Calls are all after 11pm

Received call on business line.  I answered the phone as usual with Hello this is "first name only".  The person on the other end asked if this was and used my first and last name.  I said yes.  The person disconnected.