From the picture this appears to be a telephone or cable tv wire, from the location it seems to be on private property, we would advise the property owner/landlord to contact Time Warner or AT&T.

https://www.timewarnercable.com/East/about/contactus.ashx or 1-866-489-2669.

http://repair.att.com/repair/repairCenters.jsp AT&T service center: 1-877-737-2478