How to Filter a Korean Mobile Number? Accurately Acquire Korean Messenger App Users

Manual verification is suitable for small-scale testing, but when faced with a database of 100,000+ phone numbers, it's simply asking for trouble.

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.However, many companies overlook a crucial step: if they only generate global phone numbers without using number screening tools, a large number of invalid and risky numbers will directly trigger the platform's risk control, leading to the banning of marketing accounts and business interruption.

In fact, global phone number generation must be used in conjunction with professional number screening tools (such as ITG Global Screening) to avoid the risk of account blocking and ensure the stable progress of cross-border marketing.This article will analyze why global phone number generation is inseparable from number screening tools, and how ITG's global screening can help with risk control.

Relying solely on globally generated phone numbers and using them directly for marketing without filtering will trigger account bans based on three dimensions: "number quality, platform rules, and user complaints."

Through multi-dimensional screening, "virtual numbers, high-complaint numbers, and linked banned numbers" are removed from the global phone number pool, retaining only "real, valid, and low-risk" numbers.The cloud control system offers customized and detailed screening modes to meet the needs of different scenarios, ensuring that every promotion accurately targets your target customers.

Batch export of screening results allows for easy management of Telegram, WhatsApp, LinkedIn, and Facebook accounts, enabling efficient marketing implementation.The system automatically detects unused and anomalous accounts and filters based on age, gender, and activity level, ensuring cleaner marketing data and more efficient promotions.

The cloud control system manages accounts on multiple platforms in one place, enabling batch screening and efficient operations, saving manual operation time and labor costs. Using profile picture, gender, and interaction filters, you can precisely target potential customer groups and increase the conversion rate of social media campaigns.The system supports batch account management across multiple platforms, combining active and online filtering to ensure every campaign reaches the target user group.