Pick a phone number for individual call

When cold calling, I use between 2-3 numbers so they don't get flagged as spam by the phone carriers. My problem is that when I reach back out to a seller for an individual follow up call, one of my other phone numbers would be used to make that call which then confuses the seller as to why I am reaching out from a different phone number. I would like to have the option to call an individual seller from the same number that I originally used to cold call.