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

In conjunction with global phone number generation, the number filtering tool can filter numbers according to "country/region compliance requirements," ensuring that marketing complies with local regulations.

Batch removal of unused and abnormal accounts ensures cleaner and more reliable promotional data, providing a precise foundation for social media marketing.The system filters potential customers by profile picture and nickname, quickly targeting highly active users, improving advertising effectiveness and the quality of social media operations.

The cloud control platform supports unified management of Telegram, WhatsApp, LinkedIn, and Facebook accounts, enabling batch screening and efficient operations.The system screens potential customers across multiple dimensions, including age, gender, frequency of interaction, and online time, ensuring targeted reach for social media campaigns.The cloud control system's customized mode allows for flexible adjustment of screening plans to suit different promotion strategies and business scenarios.

The batch export function simplifies account management across multiple platforms, improving marketing execution efficiency and ease of use.The system filters highly active users by device status and online time, providing real-time data support for advertising and social media operations. The cloud control platform integrates interactive filtering to quickly identify potential customers, precisely reach high-value users, and improve conversion rates.

Multi-region mobile phone number generation combined with activity screening enables precise coverage and targeting of potential users in cross-border marketing campaigns.

A combination of self-screening, proxy screening, and detailed screening allows for efficient bulk account management and improves team operational efficiency.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.

(责任编辑：comprehensive)