A hosted list service provider (“HLSP”) provides list management services for compliance purposes. The HLSP receives electronic consent information from an enterprise that may comprise a telephone number and stores the same in at least one database, to facilitate retrieving the electronic consent information for a particular telephone number. A telephone number list is provided to a call center, which can originate calls for a calling campaign using the telephone numbers on behalf of the enterprise. After the campaign is completed, the call center may provide data to the HLSP indicating which callers have requested to opt-out, and the HLSP updates its databases appropriately. The HLSP may process the telephone number data against other databases, and may inform the enterprise of called parties that have requested a change of status. Follow up communication can occur to the called party to confirm or re-establish consent for subsequent calls.