Bell just dug up my neighborhood and now I have FTTH. Do Rogers and Bell share this line or is it Bell only? I noticed that Rogers was digging up some nearby neighborhoods this summer as well. Of coarse a Bell salesman showed up not long after they finished the area.
rogers and bell are competitors, so their lines are separate. The only thing they would ever share are vendors aka third party people to do some of the ground work. perhaps a vendor who digs trenches for bell can also be the same one who digs trenches for rogers. some times a vendor has a competitors logo on their vehicle so it does not mean the actual company is doing the work, it could also mean both companies are using one contractor to dig the trenches in the ground to save on costs, why rip up grass and do it again in a month when they can run both conduit in one shot and save money.
As discussed in the following thread, Bell (contractors) did the underground work for Rogers. If they lay conduit instead of just fibre, then it should be possible to easily pull additional fibre, or it may have even been duplicated at the time if there was some forethought...
It's also possible for Rogers contractors to do work for Bell. In many cases, even though the truck may say "Bell" or "Rogers", it can be a contractor and not provider employees doing the work.
Just to confuse matters more, although the local infrastructure is usually totally independent by provider, sometimes Bell and/or Rogers may get their original signals from a single source and even use Shaw to get western feeds, etc. It makes economic sense when there is no impact on the final product. IIRC Rogers Atlantic gets some of its signals via Bell infrastructure.