Whats the sweet spot for cold calling list.

[Carl Bl]

Hello to all. I have a question for the wholesalers that do builds of cold calling lists; if I was to u cold a call a list of three thousand contacts, what would be the length of time in weeks that list would be used? I see people using the same list for several weeks during a Direct Mail campaign, would the same concepts apply for cold caliing? You help would be greatly appreciated.