Getting daily, random calls from this #.
Not sure if it a telemarketer?

Just received a call from this number lady stated it was GE Security Company.  I could hear others in the background sounding like they were making calls and speaking on phones.  I informed her that I am on the do not call list and asked why is she calling me I don't have this service.  She apologized and hung up

Called by this number 2 times in about an hour.  Didn't answer first time, second time after about 5 seconds got a lout "PING" in my ear and automated "Good Bye".

another call today

This number called my house 3 times last night.  When I do a reverse look up it says it is for a private investigator.  When I called the number back I get a recording saying the Verizon number has been disconnected or changed.  How can a disconnected number make calls?