Verizon Fios* does not use the CCI flag at all (that is to say, all channels are set to Copy Freely), except, oddly, for their barker channels. Occasionally a new channel will show up flagged, which always causes a kerfuffle, since at one time Verizon didn't routinely pair cards with their host devices (which makes it convenient to move the cards between devices), and the unpaired cards can't pick up anything with a non-zero CCI. But it appears these are mistakes, sometimes only happening in one area, and are (always? so far? I think) soon corrected.
* Not to be confused with the spun-off Frontier Fios, which as I understand it uses the CCI flag aggressively.
57 channels and nothing on