I too have been getting calls from these numbers frequently.  When I call back it says the number is out of service or it just keeps ringing.  I'm not sure what to do about this.

No message.

calling too often,do not leave message,who are they?

file a complaint w/ do not call it canadahttps://www.lnnte-dncl.gc.ca/plt-cmp-eng

Stop calling me!

got a call from 1-(204) 477-0924, - TELEMARKETERS!!!!!!!!!!!!!!- IGNORE THE CALL OR THEY 'LL CALL YOU AGAIN AND AGAIN. THEY RECORD WHEN YOU PICK -UP AND SELL THAT LIST TO OTHER TELEMARKETERS- BEWARE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!