cablesoutdoorunderground
There's a black cable cutting diagonally across one side of my front lawn (askew to my house, not going towards it, also not going towards the local electric transformer or my neighbor's house). The roots of a large tree seem to be pushing it out of the ground. I called Miss Utility last month and left a message but they never called back.
What is it, and what should I do about it?
Looks like Landscape wire.
It's low voltage cable (150 volts), so there's likely a transformer and/or control box at the other end. Though the previous owners may have taken all the landscape lighting (leaving the rolled up cable), and possibly the control module as well. So you might just find where the control module used to be.
From my point of view, looks like an optical fiber from isp. Not very clear on the core view.
The elaborate connector on the other end probably will explain it, if you took that photo to an electrical supply house.
Best Answer
It appears to be COAX cable and it's almost certainly your (or your neighbors) CATV (i.e. Cable TV) line. These are often placed near trees and they get pushed up as the tree grows. That one is very exposed. I'd put in a service call to my provider and request it be buried properly.