“Does this have the CMAC # on the bottom just to know if it works with optimum?”

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• It works with Optimum. Connect it first, then call Optimum with the CMac number. They will register the new modem and get it running.

  Answered by TommyNYC 6 years ago

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• Yes, it does and it works great with Optimum!!! Best part is saving $10.00 a month on my bill. Best Buy Sales Rep. was very helpful, answered all my questions and knew just what I needed. :)

  Answered by Kris 6 years ago

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• This definitely works with Optimum. I recently purchased this one for my mother so she could return the optimum one and no longer pay the monthly fee. You have to swap it out and call Optimum to register it, but it took about 15 minutes. It has all the details you need written on the box and on the modem.

  Answered by Stacy 6 years ago

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• I got the model number from Optimum. It works just as good if not better than Optimums

  Answered by MDadNj 6 years ago

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