Lately, I've been getting calls from this number at least once a day. If I don't recognize the number, I send it to voicemail and if they want to leave a message they can but they never do.
if you call this number it takes you to CableVision, where it asks you if you want to be put on the do not call list. Even if it is not cablevision, it asks for no other information except your phone number which presumably they already have if they were calling you.