How long is the longest rope ever manufactured?

Looking out a bus window and staring up about 30 floors of unfinished building, I noticed a rope dangling from the crane. It was looped through a pully near the end of the crane. A workman on the ground grabbed both ends, so there’s a good chance it was one piece. I’m guessing there’s about 10 feet per story so, both ways, that’s 600feet.

But what if the building were 110 stories, that would make the rope 2200 feet. That’s a hell of a long rope, or might there be an even longer one?