Complete guide to acquiring data for Line activation: number generation → Practical guide to social screening number assembly line

In the Southeast Asian and East Asian markets, Line is the social giant second only to WhatsApp, covering core regions such as Japan, Taiwan, Thailand, Indonesia, and Malaysia. For the overseas marketing team, Line activation data - that is, the Line registration number that has been verified as reachable - is the cornerstone of accurate customer acquisition. If the team is still using random mass messaging or manual one-by-one verification, it is not only inefficient, but also prone to wasting marketing budget due to invalid numbers. This tutorial will help you build an automated pipeline from number generation to Line social screening, helping you obtain high-quality Line user data quickly and at low cost.

What is Line activation data? Why is it needed for overseas marketing?

Line activation data refers to the set of numbers marked as “registered/available for Line” after batch verification through technical means. The biggest difference between this type of data and the original number list is that the former is filtered accurate leads that can be directly used for Line private messages, community invitations, or advertising targeting, while the latter is mixed with a large number of empty numbers, downtime numbers, or non-Line users.

In the overseas customer acquisition scenario, using Line to activate data can significantly improve the conversion rate:

• Avoid sending messages to non-Line users to reduce the risk of being reported;
• Support segmentation by country/region, gender and other dimensions to achieve targeted operations;
• Provide seed audiences for official Line ads such as LINE Ads or LINE Business Connect.

The difference between Line activated and unactivated/invalid numbers

All numbers can be classified into three categories in the Line ecosystem:

Status	Meaning	Business Value
Activated/valid	This number has been registered with Line and is available	Directly accessible, the probability of user activity is high
Not activated	This number is not registered with Line	Unable to receive Line messages, marketing actions are completely ineffective
Invalid number	Empty number, downtime number, format error, etc.	Completely worthless, and there is a cost for triggering SMS/voice verification

In practice, unsubscribed numbers and invalid numbers combined may account for 30%–60% of the original number list. Sending messages in bulk without filtering not only wastes money, but may also trigger the Line risk control mechanism due to a high proportion of failures. Therefore, obtaining Line activation data is a necessary preparatory step for overseas marketing.

Why “Number Generation + Line Activation Screening” is an efficient pipeline

There are two traditional ways to acquire Line customers: one is to manually purchase or crawl a list of numbers, and the quality is uncontrollable; the other is to verify the numbers one by one through API or desktop, which is extremely slow. Using the combination strategy of “number generation → Line social screening number”, automated batch processing can be achieved:

1. Number generation: Use tools to batch generate theoretically existing numbers by country, number range, or even customized CSV. This step is usually free and unlimited.
2. Line Screen Number: Submit the generated number to the screen number platform, filter out users who have subscribed to Line at one time, and return fields such as activation status, gender, and UID.

After the two steps are connected, you can start from scratch and have a batch of verified and gendered Line user lists within a few hours without purchasing any third-party data.

How to build an automated pipeline for number generation → Line activation and screening?

The following steps are based on the KK-DATA platform, and the processes of other similar tools can be executed as a reference.

Step 1: Generate target country number

KK-DATA’s “Global Number Generation” function is completely free and supports more than 240 countries and regions. There are two modes of operation:

• Generate by country/number segment: Enter the “Number Generation” module of the console, select the target country (such as Thailand, Indonesia), the system will automatically fill in the common number segments in the country, set the quantity (such as 5000), and click Generate.
• Customized CSV import: If you already have some target numbers (such as number fragments collected from local businesses), you can upload the CSV file, and the platform will complete or remove duplications to generate a new number based on the number you provided.

The generated numbers will be exported in TXT or CSV format, with one number per line, and can be directly used for the next step of screening.

Step 2: Submit the Line activation filtering task in the console

1. Log in to KK-DATA Console, click “Screen Task” → “New Task”.
2. Select the detection platform as Line screen number (Note: Line currently only supports activated/valid detection and does not provide an active window similar to Telegram).
3. Upload the number file generated in the first step (supports TXT/CSV, up to about 1 million records in a single task).
4. The system automatically calculates the estimated cost and displays it on the interface. Submit the task after confirmation.
5. After the task starts, you can check the progress in the task list; upon completion, a notification will be sent via Telegram (a notification account needs to be bound in advance).

Step 3: Export filtering results and field interpretation

After the task is completed, download the results file (CSV or TXT) in the console. The key fields are as follows:

Field name	Meaning	Purpose
line_open or line_valid	Whether activated/valid (1=yes, 0=no)	Filter out reachable numbers
line_gender	Gender (male/female/unknown)	Male/female targeted marketing
line_uid	Line user unique identifier (UID)	Can be used for subsequent in-depth operations of Line API, such as adding friends or joining groups
line_age (available in some tasks)	Age inference value (such as 25-34 years old)	Age segmentation operation, but not ID card level accuracy

It is recommended to prioritize the line_open=1 numbers and then further group them by gender or age based on business needs.

What detection fields does Line filter number support? How to use gender and UID data?

In the results exported from the console, the Line filter number mainly provides the following fields (specifically, the actual console exported columns shall prevail):

• Activation status: core field, determines whether the number is available.
• Effective status: In some cases, it is synonymous with activation. Some tasks will distinguish between “registered but restricted” situations.
• Gender: Infers gender, often used for male/female targeting. For example, when promoting men’s health products, you can only use the number line_gender=male to avoid wasting resources.
• Line UID: This is an important but often overlooked field. Line UID can be used for:
  • Send template messages through Line API (requires enterprise service account permission);
  • After exporting, match it with the CRM system to achieve cross-channel user identification;
  • In community operations, use UID to add friends or invite to the group to avoid frequent detection of numbers by Line.

In addition, some tasks will also return line_age (age range) and line_avatar (avatar URL, which can be used for avatar similarity analysis). However, please note that Line screen number cannot provide recent activity time, which is essentially different from Telegram’s activity detection.

What are the common precautions when using Line to activate data?

1. Line has no active window: The Line activation data you obtain only indicates that the number is currently registered, and there is no guarantee that the user has opened Line recently. It is recommended to use operational strategies (such as sending group invitations) to distinguish activity levels.
2. Gender data is an inferred value: When using gender field targeting, it is recommended to retain some “unknown” numbers to avoid excessively eliminating potential users.
3. Avoid duplicate detection: Submitting the same number repeatedly will waste your balance. KK-DATA has a built-in data deduplication warehouse, which can automatically remove detected numbers before submitting tasks. It is recommended to turn this feature on.
4. Compliant use of data: When using Line activation data for private messages, you should comply with the anti-spam regulations of various countries and Line platform policies, and avoid frequent and high-concurrency sending, otherwise the number may be blocked.
5. Download results in a timely manner: Screen number results are saved for a limited time by default and should be downloaded to the local computer as soon as possible after the task is completed.

Cost control and balance management of number generation and Line social screening numbers

Understanding billing models can help you plan your budget appropriately:

• Number generation is free: No matter how many numbers are generated, there is no charge.
• Screen number deducted on a per-item basis: Only after the Line number screening task is submitted and successfully completed, the balance will be deducted based on the actual number of numbers detected. The unit price varies depending on the platform and detection type (for example, Line activation detection may be cheaper than Telegram gender detection), please check the real-time display of the console for specific prices.
• Insufficient balance cannot submit task: You need to use USDT (TRC20) to recharge, the minimum is about 50 USDT, and the recharge will be automatically credited to your account.

Cost control suggestions:

• It is recommended that the number of tasks submitted at one time be between 5,000 and 50,000, so that results can be obtained quickly without excessive fixed handling fees (if any) due to frequent submissions.
• Use the deduplication function to avoid repeated detection of the same number.
• When generating numbers, try to select country/region code segments with a high proportion of Line users (such as Thailand starting with 08/09, Taiwan starting with 09) to increase the activation rate and reduce the cost of invalid detection.

How to confirm the quality of the “Line activation data” received?

After getting the screening results, it is recommended to do the following verifications:

1. Random sampling manual verification: Randomly select 20 to 50 “activated” numbers from the results, and use personal Line to try to search or add friends. If most are searchable, the quality is reliable.
2. Duplication rate check: Use Excel or Python to remove duplicates from the phone column and confirm that there are no duplicate rows in the task results. If there are duplicates, it may be that the upstream numbers were generated without deduplication or there was a bug in the number screening process.
3. Field integrity check: Check whether the line_open column in the CSV is all 1 (only the activated status is selected when filtering), and the line_gender or line_uid column has a reasonable fill rate (usually the UID fill rate is higher than gender).
4. Reasonability of gender distribution: For male/female orientation scenarios, you can observe whether the gender ratio is in line with the gender ratio of Line users in the target country (for example, there are slightly more male than female Line users in Japan).

If an abnormality is found, you can contact customer service to check the task log.

FAQ

**Q: What is Line activation data? Can Line social screen accounts be used for gender screening? ** Answer: Line activation data refers to the collection of numbers that are confirmed to have registered Line after passing batch testing, which can be used for precise contact. KK-DATA’s Line filter number supports gender fields (including male/female) and can be used for male/female targeted operations. However, gender is inferred data and is not officially guaranteed and is suitable for reference use.

**Q: How do number generation and Line activation screening work together? ** Answer: First use the global number generation function to generate the target country number for free (or import a custom CSV), and then submit these numbers to the Line screening task. The platform will filter out active users who have opened Line at one time, and return fields such as gender and UID. Get verified Line user data in two steps.

**Q: How much balance is required to generate 5,000 numbers and filter out the Line activation data? ** Answer: Number generation is completely free. Screen numbers are deducted on a per-item basis. The specific unit price for Line activation testing varies depending on the platform. The console will display an estimated fee before submitting the task. Please refer to the real-time price.

**Q: What export fields does KK-DATA’s Line filter number support? ** Answer: Supports exporting Line activation status, valid status, gender field (including male/female), Line UID, etc. The specific column names are based on the column headers of the CSV exported by the console.

**Q: How long does it take to get the results after submitting the task? ** Answer: The processing time depends on the number of tasks and the current load of the system, usually ranging from a few minutes to tens of minutes. After the task is completed, you can be notified through Telegram to facilitate timely downloading.

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Master Number Generation→Line After opening the screening pipeline, you can efficiently obtain high-quality customer acquisition data. 👉 Log in to the console to start screening numbers; if you have any questions, you can contact customer service in both directions https://t.me/kkdata_robot; for more operating instructions, please refer to the document https://docs.kkdata.cc/.