[fred cook]

Since the power is underground, the poles will most likely belong to the local telephone company. There should be a small metal tag on the pole with a name. Or, there could be a brand directly in the wood. Since there is no power, the top wire is most likely the teleco cable, the ones underneath are most likely the cable company cables. If there is a cable that has a strange looking loop in it that is most likely fiber cable. The metal tag will sometimes have a line/lead number stamped into it along with a pole number and possibly a year the pole was placed. I would call the local Telco and talk to someone in their engineering department. If it is their cable, they will be happy to send out a bucket truck to safely cut the limb off the wire. Hope this helps.