I've done several of these before. I usually start at the dmark and take notes of every circuit in the building. Then I follow the cable see what they connect to. Many times they connect to nothing or a piece of gear that is powered off. Those are fast, easy wins. Once I have a physical inventory, I go to the bills and CSR's (Customer Service Records) from the service provider. I cross reference everything to make sure that my physical invertory matches the CSR's and bills. That's it.


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