How to Determine if a Vietnamese Mobile Number is Invalid Number? Digital Planet Global Number Checker

It can not only quickly eliminate invalid numbers and target precise customers, but also ensure account security, so that every investment will be worthwhile.

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.The system supports generating mobile phone numbers for India, Japan, Mexico, the United States, and other regions, combining account activity analysis to achieve cross-border precision marketing. By enabling filtering, activity filtering, and interaction filtering, you can monitor target user status in real time and improve social media operation efficiency.

The cloud control system allows you to filter accounts by age, gender, frequency of interaction, and online time, enabling precise targeting of potential customer groups.The system supports batch export of screening results, making it easy to manage accounts across multiple platforms and effectively implement and execute marketing plans.

The cloud control platform combines self-screening, proxy screening, and detailed screening modes to efficiently filter batch accounts, ensuring more targeted marketing efforts.The cloud control system supports unified management of accounts across multiple platforms, allowing you to batch filter by age, gender, and activity level, enabling precise marketing efforts across Telegram, WhatsApp, LinkedIn, and Facebook.