Calls repeatedly and when you pick up there is only a beeping tone.  Calls late at night, during dinner, after midnight, but when you call back there is only a busy tone.

Call screen features cannot block this number.

Might have to resort to calling the police.

I've had the same experience. I have a business cell phone, and I have been getting attempted faxes for over a year now.

Getting same call 4:30 in the morning

getting calls from 416-640-3149 - all hours, 8 am - woke me up at 4 am - call them back and it is a fax line. wanted to google to ID the source, all I found was others suffering like me. What can  I do about this, I am on a no call list.

caller ID 416 640-3149. called at 2:06am again at 3:04am and finally at 6:32am. Fax tone. No luck trying to find company. Anyone who find out please post here!!