I see this number frequently on my phone when I get home from work (N.A.T.S.). Today I answered a call and a man said: "Sorry, wrong number." and hung up. I tried a reverse phone lookup with no luck.

This number belongs to North American Trade School out of London Ontario. They called my fax number so I did not get to hear their sales pitch.

http://800notes.com/Phone.aspx/1-(519) 963-5015

annoying call. who are they(NATS)?

https://www.lnnte-dncl.gc.ca/insnum-regnum-engIn order to register on the National Do Not Call List (DNCL) personal information will be collected, used and disclosed by the National DNCL Operator in order to register, verify and de-register residential, wireless, fax or VoIP telephone number(s) on the National DNCL. The numbers registered by consumers on the National DNCL will be disclosed to telemarketers and clients of telemarketers and other subscribers to the National DNCL to prevent telemarketing calls to those numbers. The numbers may also be disclosed, on a confidential basis, by telemarketers and clients of telemarketers and other subscribers to the National DNCL to another person involved in supplying the subscriber with services to enable compliance with the National DNCL Rules. If you haven't registered your number, its open to be called by any company. Quit yur B**ch'n

Some people need anger management on this site...  If you don't know the number, don't answer.  If it costs you money to check your messages **check from another phone!!**  All the swearing is NOT necessary.