As others have posted pretty hard to tell but looks like ordinary multipair copper cable.
To research this some more check the line out over a longer distance. If fiber see Orange jacket identifying it as fiber optic cable.
Fiber has stringent bend radius. If you see something that looks like a snowshoe attached to the cable that is pretty good indication you are looking at fiber, or at least fiber overlashed to a copper
»www.qualitycable.com/LL_FIBOPTSS ··· TSS_.htm
/tomedit fixed link