No. We track numbers of people and demographics about those people, but we don’t track specific people or IP addresses. We think that’s creepy. In addition, it's usually against privacy laws.
Humming can deploy data from a customer list or CRM to target your current/previous customers. We do this anonymously, by having a third-party match emails or other customer information with the universal ID numbers we all have connected to our phones and computers. In this way, we don't track people, but rather the devices associated with those people.