How to screen German mobile phone numbers

Is sifting through a massive number of accounts cumbersome? The system combines age, gender, activity level, and online time to precisely target users across multiple dimensions, improving marketing efficiency.

WhatsApp numbers obtained through third-party procurement, social media customer acquisition, trade show collection, etc., often contain a large number of invalid resources - empty numbers, suspended numbers, canceled accounts, or even virtual numbers specifically used for bulk registration (such as Google Voice numbers in the United States and temporary mobile phone numbers in India).According to industry data from 2025, the average inefficiency of WhatsApp numbers worldwide reached 52%, and even exceeded 60% in some emerging markets (such as Southeast Asia).

If marketing content is sent directly without prior screening through the WhatsApp screening platform, it will not only waste SMS fees, API call fees, and manual operation costs, but will also trigger WhatsApp's risk control rules due to "frequently sending messages to invalid numbers," resulting in the marketing account having its sending function restricted and affecting the overall promotion plan.In 2025, WhatsApp marketing for businesses will largely target global markets, but significant differences exist in number rules and user habits across different regions: US numbers begin with "+1," and users are more concerned with "privacy and instant response."The core of precision marketing in 2025 is "sending the right content to the right people," but traditional screening methods can only determine "whether the number is registered on WhatsApp," and cannot obtain user tags such as age, gender, interests, and active time periods.

For example, when promoting maternity and baby products in the European market, if you cannot filter out users who are "women aged 25-35 + highly active + interested in maternity and baby topics", you can only target them indiscriminately, resulting in poor conversion rates.By accurately targeting specific demographics through WhatsApp's screening platform, conversion rates can be increased by 8-10 times, which is also the key to enabling leading companies to achieve "low cost and high conversion" in 2025.

As a professional WhatsApp screening platform, ITG's comprehensive screening solution has become a powerful tool for precision marketing in 2025 because it focuses on four key dimensions: accurate identification, global adaptation, tag empowerment, and efficient implementation. This comprehensive solution perfectly addresses the aforementioned pain points.

ITG's global screening breaks through the limitations of traditional methods that only verify registration status. It can perform multi-dimensional status assessments on global phone numbers, increasing the accuracy of the WhatsApp screening platform to 98%.With our cloud control system, you can filter accounts across multiple platforms with one click, including Telegram, WhatsApp, Twitter, LinkedIn, the international version of TikTok, and Facebook, accurately filtering by age, gender, and activity level. This makes social marketing more efficient and precise, saving significant labor costs.

The system supports active, online, interactive, and duration filtering, helping you quickly understand account status and activity, intelligently filtering out low-activity and inactive accounts, ensuring every marketing investment is fully utilized and maximized. The cloud control platform offers self-screening, proxy screening, detailed screening, and customized modes. It supports batch combination of screening criteria, ranging from gender and age to profile pictures, interaction frequency, and online time, fully meeting the operational needs of diverse businesses and improving marketing efficiency and precision.The system's batch account generation function allows rapid generation of international accounts, including those for Japanese, US, Indian, and Mexican phone numbers. Combined with filtering features, it easily targets target user groups, making cross-border marketing less complex and tedious.

The account sharing cloud control system includes built-in delisting and device filtering functions, automatically eliminating invalid accounts and unusual devices, ensuring account resource quality and marketing precision, ensuring optimal advertising and social media operations.The system supports unified management across multiple platforms and transparent data viewing, allowing users to monitor account status, screening results, and activity data at all times, enabling efficient collaboration and helping teams quickly develop targeted marketing strategies to maximize the value of social media operations. With the cloud-based control system, you can filter target accounts by age, gender, activity level, profile picture, and interaction frequency. This allows you to quickly identify high-value users, increase ad conversion rates and social media engagement, and achieve precise and efficient marketing promotions.