Effectively managing large-scale lists requires robust systems and disciplined processes. Centralize data in a CRM with strong segmentation and automation capabilities. Implement scheduled hygiene routines: deduplicate monthly, scrub against the National Do Not Call (DNC) registry quarterly, and purge inactive numbers biannually. Use tagging to track source and engagement levels. For ... https://www.b2cdatabase.co/usa-phone-number-list/