Who called from 2137165960

Same as above.  Don't know but the number suggests that might be a new spoofed number being used by A1 Solar Power, aka. American Pro Energy.  There are extensive complaints about their illegal telemarketing activities here and elsewhere.

Got a call today from this number but didn't get a chance to answer it. No message left.

Same as the others. Left no message. More than likely another spoof.

Complaint filed with FTC:
https://complaints.donotcall.gov/complaint/complaintcheck.aspx

Called my cell. No msg. Blocking now.