Tips for batch deduplication of millions of mobile phone numbers

WhatsApp account filtering is key to solving this problem: by filtering WhatsApp accounts, businesses can accurately filter out invalid accounts such as inactive numbers, dead numbers, and accounts that are not targeted at them, allowing marketing resources to be focused on high-value customers.

From format misjudgment to the inefficiency of manual verification, and then to the intelligent leap of ITG's full-domain filtering, my WhatsApp number filtering journey has made me deeply aware of its value.With its advanced algorithms and massive data processing capabilities, WhatsApp number screening can not only efficiently verify number activity but also significantly improve marketing conversion rates.

In the digital marketing arena of 2025, Telegram's number-checking system has become an essential tool for precision marketing, especially when combined with WhatsApp's number-checking technology, which can maximize cross-platform customer reach.Telegram's number filtering system not only efficiently filters invalid numbers, but also uses big data analysis to identify active users, helping marketers avoid wasting resources.Ignoring the importance of Telegram's screening system led to low campaign efficiency, but after introducing ITG's full-domain screening tool, customer reach increased by more than 60%.

In the global wave of precision marketing in 2025, WhatsApp, with its over 2 billion monthly active users and 98% message open rate, has become a core platform for cross-border businesses to reach their customers.However, as the user base expands, issues such as a surge in invalid phone numbers, regional rule differences, and segmented user needs have led businesses into a predicament of "high advertising costs, low reach efficiency, and poor conversion rates."

At this point, professional WhatsApp screening platforms become the key to breaking the deadlock – high-quality WhatsApp screening platforms can filter out real and active target customers from a massive number of numbers, improving marketing accuracy from the source.

As a leading WhatsApp screening platform, ITG Global Screening, with its multi-dimensional identification, global adaptability, and efficient implementation capabilities, has become a core tool for enterprises to achieve "efficient reach + high conversion" in 2025.Both boot-up and online screening provide real-time insights into the activity patterns of potential customers, providing accurate data support for advertising and social media operations.

The cloud control platform supports batch generation of mobile phone numbers for India, Japan, Mexico, and the United States, combining account activity analysis to achieve targeted marketing in cross-border markets.The system filters by profile picture and nickname, quickly targeting target customers, transforming social media operations from blind outreach to efficient and precise conversions.

The flexible combination of self-screening, proxy-screening, and detailed screening modes meets the account screening needs of different business scenarios and improves team operational efficiency.The multi-platform account batch export function supports unified management of Telegram, WhatsApp, LinkedIn, and Facebook, enabling rapid implementation of marketing tasks. The system screens potential customers based on multiple dimensions, including age, gender, frequency of interaction, and online time, ensuring accurate social media promotions and high conversion rates.