Interesting. I put in a North Carolina One Call request to mark utilities so that I could bury a satellite dish cable in my yard. On the same day the marking contractor came out, coincidently so did a Time Warner Cable truck. There was no technical need for TWC to be here: the marking contractor marks TWC lines along with everything else.
It looks to me like TWC smelled competition from the One Call report and wanted to see what provider might be moving into the neighborhood. I wonder what TWC would do if the whole neighborhood put in marking requests?
maybe paranoia?!?