Upcycling devices like DOCSIS 3.0 MODEMs

I found some new in box MODEMs in storage and they are 3.0 DOCSIS. I was wondering how I could donate them to an ISP that still uses DOCSIS 3.0. I think several ISPs have switched to 3.1 Should I use the vendor recycling method and hope it stays out of a landfill? -- - Andrew "lathama" Latham -