Like mciupa says, we sort of need to know more about what you want to hear. If you mean the mobile phone service, the frequencies fall within a standard grouping, and there aren't CTCSS tones used - and the signals are digital these days, in a format scanners can't decode.
If you mean any of the trunking systems across the country that are owned by Bell, the frequencies are mostly listed in the database here on RadioReference (look for the word "Database" in the blue bar at the top of the webpage). Again, trunked systems don't use CTCSS tones.
If you are talking about other systems such as non-trunked sites that Bell leases communications to other users from, they will show up in the search jwt873 suggested. However, CTCSS tones are again not included in this data. CTCSS tones don't form part of the license - you can change tones at any time it tickles your fancy, so long as you don't end up interfering with another user on the same radio frequency. In order to figure them out, either you have to figure them out by having your scanner detect them, or they might be listed in the RRDB as mentioned above.