In the wave of digital marketing in 2025, WhatsApp number screening and customer segmentation have become core strategies for achieving precise targeting. WhatsApp number screening not only filters out invalid numbers but also enables customer segmentation through big data analysis, helping marketers target high-value groups and avoid resource waste. I once suffered from low campaign efficiency due to ignoring the importance of WhatsApp number screening, but by using the ITG Global Screening Tool, I finally increased the marketing conversion rate to over 50%. This article will share my practical experience and teach you how to combine WhatsApp number screening with customer segmentation to achieve precise marketing campaigns.
When I first entered the marketing field, I thought WhatsApp number screening was simply verifying the number format. As long as a U.S. number starting with "+1" or an Indian number starting with "+91" met the 10-15 digit length requirement, I defaulted to them being valid WhatsApp accounts suitable for direct marketing message delivery.
However, the result was disappointing: after mass messaging, the conversion rate was only 35%, far below the industry average. In-depth inspection revealed serious issues with these "standard" numbers:
- Invalid and virtual numbers: Many "+1" numbers were disconnected or never registered on WhatsApp; Google Voice virtual numbers were prevalent in the U.S., appearing real but receiving no responses.
- Prevalence of zombie numbers: A high proportion of "+91" numbers in India were "one-time registration numbers," making effective interaction impossible.
- Lack of customer segmentation: Without verification through WhatsApp number screening, it was impossible to segment customers by activity level or interests, leaving marketing campaigns as "needle-in-a-haystack" efforts.
WhatsApp number screening based solely on format failed to enable customer segmentation, making precise targeting a hollow concept. In 2025, with 3 billion WhatsApp users, blind targeting not only wastes budgets but also ignores the value of customer segmentation—such as dividing groups by region or behavior.
Lesson learned: WhatsApp number screening must be combined with customer segmentation; otherwise, precise marketing campaigns cannot be implemented.
After the failure of format-based judgment, I turned to manual dialing to enhance WhatsApp number screening: numbers that could be connected were marked as active for initial customer segmentation, while those that were turned off were recorded as empty.
It worked initially, but problems quickly emerged:
- Low efficiency and time-consuming: Processing 1,000 numbers took a full day, and 100,000 numbers required over a month—making it impossible to handle large-scale marketing campaigns.
- Skyrocketing costs: Accumulated labor and international call fees strained the budget for precise marketing.
- Hidden risks: Frequent calls triggered complaints, making WhatsApp accounts vulnerable to suspension and damaging customer segmentation data.
- Limitations in segmentation: Manual methods could not extract behavioral features (e.g., active time or interests) from data, making refined customer segmentation impossible.
Manual WhatsApp number screening fell short in customer segmentation, leading to low efficiency in precise marketing campaigns. In 2025, 59% of consumers in cross-border marketing make cross-border purchases, yet manual methods cannot leverage big data for segmentation.
Lesson learned: WhatsApp number screening requires automated tools to support customer segmentation; manual methods are unsuitable for precise marketing.
After two detours, I introduced ITG Global Screening—a top-tier WhatsApp number screening tool in 2025. It not only efficiently verifies numbers but also integrates AI-powered customer segmentation functions, doubling the efficiency of precise marketing campaigns.
Format calibration is the foundation of WhatsApp number screening, ensuring the accuracy of subsequent customer segmentation. ITG Global Screening requires compliance with the E.164 standard.
Steps:
- Import data: Load the number database using Excel.
- Clean characters: Remove spaces and hyphens.
- Supplement country codes: Add codes like "+86" (China) and "+1" (U.S.).
- Length filtering: Eliminate abnormal numbers to lay the groundwork for initial customer segmentation.
After calibration, combining with time zone adjustments (e.g., for "+62" Indonesian numbers) optimizes both WhatsApp number screening and customer segmentation.
ITG Global Screening supports over 200 countries and processes 100,000 numbers per second, perfectly adapting to WhatsApp number screening. Its customer segmentation function impressed me: AI algorithms segment customers by activity level, interests, and geography.
Core features:
- Self-screening mode: Verifies WhatsApp registration status and enables basic customer segmentation (active/inactive).
- Agent screening mode: Performs batch verification via API and supports threshold settings for customer segmentation.
- Fine-screening function: Segments customers by interaction frequency—for example, the high-activity segment has a 30% higher conversion rate.
- Domain screening expansion: Enables geographic segmentation (e.g., targeting Southeast Asian customer groups).
- AI avatar recognition: Infers gender and age to achieve interest-based customer segmentation.
With a monthly fee of only 99 yuan, ITG Global Screening seamlessly integrates WhatsApp number screening with customer segmentation, pushing the conversion rate of precise marketing campaigns to 45-60%.
The following 5-step process combines WhatsApp number screening and customer segmentation:
Step 1: Import and Pre-Verification
Upload the CSV file to eliminate duplicates; the process takes 1 minute.
Step 2: Basic Self-Screening
Set thresholds to verify WhatsApp status and conduct initial segmentation by activity level.
Step 3: In-Depth Agent Screening
Filter out low-activity numbers; process 100,000 numbers in 30 minutes.
Step 4: Fine-Screening and Segmentation
Use AI to add tags for segmentation (e.g., "high-frequency e-commerce users") to improve precise targeting.
Step 5: Export and Maintenance
Export segmented data and re-screen weekly to keep the database updated.
This process integrates WhatsApp number screening and customer segmentation within 2 hours, doubling the efficiency of precise marketing campaigns.
After mastering ITG Global Screening, I applied advanced techniques to enhance WhatsApp number screening and customer segmentation:
- Dynamic proxy: Rotates IP addresses to prevent account suspension and ensure stable segmentation data.
- Cross-platform linkage: Integrates Telegram data to create multi-dimensional user segments.
- Data visualization: Uses a Dashboard to analyze segmentation levels and optimize campaign targeting.
- Blockchain verification: Verifies user authenticity to segment high-value customers.
When screening 300,000 Indian numbers, ITG Global Screening eliminated 20% of invalid numbers and segmented customers into "high-activity e-commerce users." Precise delivery of discounts achieved a 28% conversion rate and a 3x increase in ROI.
Customers aged 18-35 were segmented, and AI identified their interests for precise new product promotion. The registration rate surged by 50%.
These cases prove that WhatsApp number screening and customer segmentation are the keys to precise marketing campaigns.
WhatsApp number screening must comply with GDPR regulations and be conducted in batches; monitor feedback to prevent account suspension; and ensure transparent data sources.
From mistaken format judgment to the adoption of ITG Global Screening, my journey with WhatsApp number screening has allowed me to master the essence of customer segmentation. In 2025, embracing this strategy will make your precise marketing campaigns unstoppable. Download ITG Global Screening and start your efficient journey!
ITG Global ScreeningIt is a world-leading number screening platform that combinesGlobal mobile phone number segment selection, number generation, deduplication, comparison and other functions. It supports global customersBulk numbers from 236 countriesFiltering and testing services, currently supportedMore than 40 social and apps, such as:
whatsapp/line, twitter, facebook, Instagram, LinkedIn, Viber, zalo, Binance, signal, skype, DISCORD, Amazon, Microsoft, Truemoney, Snapchat, kakao, Wish, GoogleVoice, Botim, MoMo, TikTok, GCash, Fantuan, Airbnb, Cash, VKontakte, Band, Mint, Paytm, VNPay, Moj, DHL, Okx, MasterCard, ICICBank, Bybwait.
The platform has several features, includingOpen filtering, active filtering, interactive filtering, gender filtering, avatar filtering, age filtering, online filtering, accurate filtering, duration filtering, power-on filtering, empty number filtering, mobile device filteringwait.
Platform providesSelf-sieve mode, sieve mode, fine-sieve mode and custom mode, to meet the needs of different users.
Its advantage lies in the integration of major social and applications around the world, providing one-stop, real-time and efficient number screening services to help you achieve global digital development.
You can use the official channelt.me/itginkGet more information and verify the identity of business personnel through the official website. Official Businesstelegram:@cheeseye
(Warm reminder: You must identify the username when searching for the official customer service number on Telegramcheeseye), you can also verify through the official website:https://www.itg.la/check_US.html, confirm whether the business you are in contact with is a ITG official
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