I am in Ottawa and got the same thing, they always hung up on me because i ask the name of the company and ask to be removed from their list but they call back!
This is a Majic Jack number Calls originate in Bangalore India and purport to be offering Air Duct Cleaning to obtain Credit Card numbers Very persistent and call repeatedly no matter what. Best stratagey is to book the service for cash payment and give a false address Give 'em the ol' Canadian run around
613-238-0380
613-820-9846
613-224-3862
613-238-0380
613-800-2927
613-800-2927
613-399-8998
613-238-0380
613-399-8998
613-233-6868
1-800-250-0159
613-787-4483
613-787-4483
613-7874483
1-416-820-9846
613-800-1313
All these calls started on April 23rd, 2012 and up to now, June 2012. How many times can you say no!
Maybe the heat is getting to those calling from across the globe into your home.
Funny thing - I don't have any floor ducts.