Caller ID was "WORLD ONE."  No message left.  Presumed telemarketer.

Got a call, no voicemail from WORLD ONE.

I got the same call - World One. Must be using a spoofed number.  When I called the number back, I get a recording with some music, then a man with a US accent saying that no one is there to take my call.  I've received that same message from calling back other numbers. Definitely Telemarketer.

When I Googled World One it, it says it's an office tower in Mumbai India (no surprise there).

Called up today. Caller ID says World One' and left no message.

WORLD ONE. From this number called several times, no voicemail.