Are there any free ways to detect unused Hong Kong numbers? Here are some trial tools for you.

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.

The system supports international mobile phone number generation and screening, integrating social media account activity to achieve targeted global marketing and user resource integration.Through interactive, active, and online screening, you can quickly identify high-value users, making social media operations more efficient.

The cloud control system offers customized and granular screening modes to meet diverse business scenarios, making marketing strategies more flexible and precise.The system automatically detects unused and anomalous accounts, and filters based on age, gender, and activity level for cleaner and more effective marketing data.The cloud control system supports multi-platform account management, integrating age, gender, and activity level filtering to quickly identify high-value users on social platforms like Telegram, WhatsApp, and Facebook, improving marketing efficiency.

Through intelligent filtering based on unused numbers, active status, and online time, you can easily eliminate invalid accounts, ensuring cleaner marketing data and helping operations teams accurately target potential customers. The system offers self-screening, proxy screening, and detailed filtering modes, allowing flexible filtering by profile picture, nickname, mobile number, and area code to meet the marketing needs of different business scenarios.Batch generation and filtering of Indian, Japanese, and Mexican area codes is supported, making cross-border marketing more convenient and quickly reaching potential customers worldwide.

The cloud-based control system features built-in interaction and activity filtering, allowing you to monitor target accounts' interaction frequency and online status in real time, improving ad targeting and conversion rates.

One-click export of screening results allows batch operations on Telegram, WhatsApp, and LinkedIn.Intelligent tag generation: Automatically tags valid accounts with "activity tags", "demand tags", and "spending potential tags" without manual tagging.

The root cause of high costs in cross-border marketing lies in "resource mismatch"—investing budgets and energy in ineffective accounts. WhatsApp account screening is key to solving this resource mismatch.By using ITG's full-domain filtering, enterprises can efficiently eliminate invalid numbers and focus on high-value customers, achieving a triple optimization of "reduced push costs, improved manpower efficiency, and saved opportunity costs".

In today's increasingly competitive cross-border marketing environment, "cost control" is just as important as "effectiveness improvement".Prioritizing WhatsApp account screening and using ITG's comprehensive filtering to build a precise and effective customer pool is crucial to maximizing the value of every marketing investment and achieving low-cost, high-efficiency growth in cross-border business.