Re-engage dormant contacts from your 100K list with a dedicated win-back campaign. Segment out contacts with no engagement over a defined period (e.g., 6-12 months). Craft a compelling reason to reconnect, such as a major product update, an exclusive "we want you back" offer, or an invitation to a relevant industry briefing. Test different messages across segments. The size of your li... https://www.b2cdatabase.co/100k-phone-number-list/