Glossary of Number Screening Service (2025): A complete concept guide from TG active detection to global number segment generation

In the daily operations of overseas customer acquisition, especially in the promotion scenarios for social platforms such as Telegram and WhatsApp, you may often hear terms such as “live code”, “screen number”, “TG active detection”, and “number segment generation”. These concepts form the core of the screening service and are also the basis for achieving accurate customer acquisition. This article will systematically sort out the most critical screening service concepts in 2025 in the form of a glossary to help you quickly understand the meaning of each term, its applicable scenarios, and how to use them to build an efficient customer acquisition data pipeline.

Whether you’re a team new to overseas marketing or a leader evaluating different data validation tools, this guide will provide you with a clear reference.

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What is the screening service? Basic concepts of acquiring customers overseas

Number Verification Service (Number Verification Service) refers to the batch verification of the registration status, activity and accessibility of mobile phone numbers on designated social platforms (such as Telegram, WhatsApp, Line, Zalo, etc.) through technical means. Its core value is: Ensure that the numbers you promote are real, active and have controllable reach costs. It is different from simple number generation or data purchase - the latter only provides the number itself, while the number screening service helps you eliminate invalid numbers by verifying the data and avoid wasting sending resources and time.

Simply put, the filter service is a “data filter”. After you get a batch of target numbers, first use the screen to confirm which numbers are available on the platform and which users have been active recently, and then carry out subsequent marketing actions (such as private messages, joining groups, etc.). This process can significantly improve conversion rates and reduce account or IP risks caused by sending invalid numbers.

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Number generation: Import from global number segment to custom CSV

Number generation refers to the use of known country number segments, operator prefixes and other rules to programmatically generate compliant mobile phone numbers in batches. The generated number itself exists logically, but it is not verified and cannot be used directly for marketing. It is mainly used as the “raw material” for screening numbers - building a pool of numbers to be screened.

KK-DATA provides multiple generation methods, including:

• Random generation of global numbers: Based on the number segment logic of 240+ countries and regions, numbers in a valid format are randomly generated.
• Global number segment generation: The user specifies a country or a specific operator prefix and generates all numbers belonging to that number segment (for example, generates all numbers under the T-Mobile number segment in the United States).
• Customized CSV import: Users directly upload their own number list (CSV or TXT file), and the platform recognizes and incorporates it into the screening process.

The difference between global number generation and number segment generation

Generation method	Features	Applicable scenarios
Global numbers are randomly generated	Numbers within the valid number range are randomly selected by country/region, and the results are widely distributed.	It is necessary to cover multiple countries or regions for preliminary screening, such as cross-border e-commerce testing different markets.
Directed number segment generation	The user specifies a specific country/operator prefix (such as the Brazilian Vivo number segment) and generates all the numbers in the number segment.	The goal is clearly focused on specific operators or regions, such as promoting Thai AIS users.

Why is generation free? How does it connect with the screening service?

The number generation process is usually free because the generated numbers are only logically existing numbers and have not undergone any actual verification. The number screening service is billed on a per-item basis - fees will only be incurred when you actually initiate a verification request for the number (such as checking whether Telegram is activated). This business model of “generating numbers for free, screening numbers and charging for each number” allows you to build a large pool of candidate numbers at low cost, and then flexibly select the numbers that require key verification.

The complete data pipeline is:

生成（免费） → 筛选（按条扣费） → 导出有价值的结果 → 去重仓库（避免重复检测）

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Core detection types of screening services: activation, activity, gender and more

The filter detection type determines which dimensions of data you can obtain. Understanding these types will help you choose the right services based on your marketing goals.

Open detection (Active/Valid) vs Active detection (Recently Active)

Detection Type	Meaning	Marketing Implications
Activation detection	Confirm whether the number has been registered on the platform (for example, a Telegram account has been opened).	Make sure the number is a reachable “live code” to avoid sending it to unregistered users.
Activity Detection	Based on activation, determine whether the user has any activity within a specific time window (such as logging in within the past 1 month or 3 months).	Active users are more likely to view messages or click links, increasing conversion rates. Common active windows include 7 days, 30 days, 90 days, etc.

Actual suggestions: If your goal is to quickly spread the volume (such as mass announcements), just enable detection; if it is accurate private message conversion, it is recommended to use active detection (such as active in the past 30 days), which can significantly increase the response rate.

Gender and age identification: How to interpret data such as “about 30 years old”

Gender detection is a very practical function in the screening service, especially suitable for marketing that needs to target gender groups (such as beauty, fitness, men’s products, etc.). In platforms such as Telegram, Line, and Zalo, some detection results will include the gender and age fields in the user’s public profile.

The “TG 30-year-old data” often referred to in the industry does not refer to age verification that can be accurate to the ID card level, but means that in the gender detection results, the platform provides an age field, and users can filter out people around 30 years old based on this field. This is a reference dimension based on user public or inferred information, and the accuracy fluctuates with the platform data quality. When using, please make a comprehensive judgment based on other characteristics and do not treat it as an absolutely accurate label.

Other platform specific detection: iMessage, RCS, Binance, LinkedIn, etc.

In addition to mainstream social platforms, the screening service can also cover a wider range of platforms, such as:

• iMessage/iOS Device Detection: Verify whether the number supports iMessage or belongs to an iOS device, suitable for Apple ecological marketing.
• RCS detection: Verify whether the number supports Rich Communication Services (RCS), which is used for advanced message push on Android.
• Facebook / Instagram: Verify whether the number is registered and active, suitable for social advertising audience screening.
• Binance: Verify whether the number is registered with Binance for cryptocurrency-related promotions.
• LinkedIn: Verify whether the number is associated with a LinkedIn account, suitable for B2B accurate customer acquisition.

When choosing a platform, be sure to base it on your target market: for example, use the Zalo screen to promote in Vietnam, use the Line screen in Japan, South Korea, Taiwan and Thailand, and focus on using the Telegram screen in Russian-speaking countries.

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Detailed explanation of mainstream social platform screening services: TG, WhatsApp, Line, Zalo

Telegram filter: activity, gender and tgid export

Telegram’s account screening scenarios mainly focus on community operations, private message promotion and TG followers. Its key tests include:

• tg activation: Verify whether the number is registered with Telegram.
• tg active: You can specify the active window (such as the past 1 month) to filter out recently active users.
• telegram gender data: Export a list containing gender, age and other fields.
• tgid export: In addition to the mobile phone number, it can also export the Telegram user ID (tgid). Later, you can add friends or trigger bot messages through the ID, which is much more efficient than sending text messages.

The advantage of exporting tgid is that you can use the API to send messages directly based on tgid without having to verify the number again. It is a “powerful tool” for private message promotion.

WhatsApp Screen: Business communication verification for the world

WhatsApp is one of the most widely used instant messaging tools in the world, especially suitable for B2B communication. The value of WhatsApp screening numbers lies in:

• Activation Test: Confirm whether the number is registered with WhatsApp.
• Activity Detection: Determine whether the user has been online recently to avoid disturbing users who have been inactive for a long time.
• Gender/Race/Avatar: Some tests can also return fields such as user avatar to help you determine user portraits.

For cross-border e-commerce and independent website businesses, WhatsApp screening can ensure that you only send product information to real users, reducing the risk of current limiting caused by a large number of invalid sendings.

Line & Zalo Screen Number: Localized Marketing in Southeast Asia Market

Line: Dominant in Japan, South Korea, Taiwan, Thailand and other regions. Line screening includes activation testing and gender testing (including male orientation). Export fields usually contain uid etc.

Zalo: Vietnam’s largest social platform, a must-have for acquiring customers in Southeast Asia. Zalo screening supports activation, activity, and gender detection, and is suitable for local business promotion in Vietnam.

Recommendation: If you plan to enter the Vietnamese market, be sure to use the Zalo screen size; if you are targeting Line users in Japan, Korea, Taiwan and Thailand, give priority to the Line screen size.

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How to choose a professional screening service platform? Key considerations

When selecting a screening service, evaluate the maturity of the following dimensions:

1. Platform Coverage: Are your target market’s social platforms supported? Does it include specific verification such as iMessage, RCS, etc.?
2. Detection type richness: Can activation, activity, and gender be detected at the same time? Does it support tgid/uid export?
3. Data deduplication capability: Can it automatically deduplicate data across tasks to avoid wasting budget through repeated detection?
4. Billing model: No subscription, billing by item? Is the unit price transparent and controllable (see real-time price on the console for details)?
5. Support global number segment generation: No external data sources are needed to build a number pool.
6. Task processing efficiency: A single task supports the maximum number (such as about 1 million), and the processing time is acceptable.
7. Security and Compliance: Does the platform provide official customer service verification channels to prevent fraud? Is data transmitted encrypted? (Does not involve API internal implementation)
8. Notification and Export: Is there a Telegram notification when the task is completed? Supports common format exports such as CSV/TXT.

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Billing model for screen number service: no subscription, billing by item and USDT recharge

An ideal screening service platform should avoid binding users to long-term packages. KK-DATA adopts the model of no subscription package, balance recharge + per-item deduction:

• Recharge method: Supports USDT (TRC20) anonymous recharge, with a minimum of about 50 USDT, and the balance will be automatically updated upon arrival.
• Deduction Timing: After the number screening task is completed, the fee incurred for the current task will be deducted from the balance. Estimated fees can be seen before submission.
• Insufficient balance: New tasks cannot be submitted and need to be recharged first.
• Transparent unit price: The unit price is different for different platforms and different detection types. Please see the console real-time price or official website billing page for details.

The advantages of this model are: flexibility, pay-as-you-go, especially suitable for teams with fluctuating task volumes.

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Data Deduplication: Why It Can Make Your Screening Service Budget More Efficient?

In multiple screening tasks, you are likely to submit the same numbers over and over again. If there is no deduplication mechanism, each detection will consume the balance and cause waste. The Data Deduplication Warehouse function allows you to store detected numbers in the warehouse. When submitting new tasks later, the system will automatically skip these numbers and only detect new or undetected numbers.

Best Practice: After each number screening is completed, regardless of the result, store all numbers (including invalid numbers) in the deduplication warehouse. In this way, after the numbers generated or imported next time are compared with the warehouse, only the undetected parts will be deducted to maximize budget efficiency.

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Batch detection of a large number of numbers: Limits on the number of numbers in a single task and practical suggestions

There is usually a maximum number limit for a single screening task. For example, KK-DATA allows a maximum of about 1 million at a time (please refer to the console instructions for details). When this limit is exceeded, it is recommended that you submit the numbers in batches:

1. Split file: Split a large file with more than 1 million items into multiple small files with less than 1 million items.
2. Submit one by one: Create tasks one by one. Note that each task sets the same detection type and platform.
3. Waiting Queue: Tasks will be queued for processing in sequence. After completion, the results can be obtained through Telegram notification.
4. Merge results: After all tasks are completed, merge the exported results of each batch to get the complete screening list.

When submitting in batches, be sure to use the deduplication warehouse to ensure that the same number will not be repeatedly detected in multiple batches.

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FAQ

**Q: Is the number screening service legal? Is user consent required? ** Answer: The essence of the number screening service is number validity verification, which is similar to email verification. It can help you confirm whether a mobile phone number is registered on a social platform and whether the user is active. However, when conducting any form of promotion (sending messages, adding friends), you must comply with the target platform’s terms of service and local data privacy regulations (such as GDPR). Screening itself does not involve active communication with users.

**Q: What is “tg 30-year-old data”? Is this true? ** Answer: This is a common colloquial saying in the industry. It does not mean age verification that can be accurate to the ID card level, but it means that in the Telegram gender detection results, an age field will be provided for users to filter out people around 30 years old based on this field. You can think of it as reference dimensions and labels based on exposed/inferred data.

**Q: How long does it take for the screening service to be completed? ** A: The processing time depends on the number of numbers submitted, the detection type selected (activity detection takes longer than activation detection) and the current load on the server. Usually, tasks with thousands to tens of thousands of items may be completed within a few minutes to tens of minutes; tasks with millions of items may take several hours. Platforms often send notifications when tasks are completed (e.g. via Telegram).

**Q: I only have dozens of numbers, can I use the number screening service? ** Answer: Yes. Most screen service platforms do not have a minimum number of tasks. However, for the sake of cost-effectiveness and effectiveness of results, it is recommended to accumulate a certain number (for example, more than a few hundred items) before submitting. At the same time, please note that the platform has a limit on the maximum number of single tasks. Please check the official documentation or console instructions before submitting.

**Q: Do “live code” and “active number” mean the same thing? ** Answer: In the context of number screening services, it can usually be used universally. “Live code” refers to a number that has been verified as activated and active. However, to be more precise, there is a slight difference between the two: “live code” emphasizes that the number is available and valid; while “active number” emphasizes that it has been active within the specified time window. In marketing, it is recommended to prioritize the use of “active numbers” to ensure reach.

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If you are planning to optimize your overseas customer acquisition data process, you might as well start by understanding these terms and then try a complete screening task. 👉Log in to the console to start screening numbers You can experience global number generation and multi-platform screening services. If you need to know specific billing or operation details, you can contact customer service https://t.me/kkdata_robot in both directions for real-time help. For more detailed technical instructions, please refer to the official documentation https://docs.kkdata.cc/.