Guide to Obtaining Valid Line Numbers: Batch Screening and Practical Usage in the AI Era
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Line Guide to Obtaining Valid Numbers: Batch Screening and Practical Usage in the AI Era
If you are working in the Southeast Asian market (Thailand, Vietnam, Japan, Indonesia, etc.), Line valid number is almost the most important customer acquisition basis. Line’s user coverage in Thailand exceeds 90%, and it also has hundreds of millions of active accounts in Japan, Vietnam, and Indonesia. The so-called “valid number” refers to the real mobile phone number that has registered a Line account and can currently receive messages. Using this kind of number for private message promotion, community invitations, and targeted marketing has a much higher reach and conversion rate than random calls or text messages. On the contrary, if you use invalid numbers (unregistered, canceled, long-term offline) for promotion, it will not only waste the budget, but may also trigger platform ban.
This article will teach you step by step how to obtain valid Line numbers in batches, from principles and tool comparisons to complete operation steps. It will also incorporate the screening ideas of the AI era - use data to drive decisions and no longer sift randomly based on feelings. Whether you are an independent website seller, an overseas community operator, or an agency investment team, you will be able to implement it after reading this article.
What is a valid Line number? Why is it needed to acquire customers overseas?
Line valid number = the real mobile phone number in the Line server. This type of number meets two conditions:
- Activated: This mobile phone number has registered a Line account and is not an empty number.
- Can receive messages: It is not a zombie account that has been banned or has not logged in for a long time. Generally, you can further filter through the “Activity” field and select numbers that have logged in recently.
Why must we rely on valid numbers to acquire customers overseas? Because if you directly use the list of mobile phone numbers to send messages in batches, 95% of them may be invalid - some are empty numbers, some do not have Line installed, and some have been abandoned. An invalid message wastes the cost of sending it (if it is sent by API, the number may also be restricted). If you first select the line valid numbers through the number screening tool and then target them, the efficiency will be doubled.
Take Thailand as an example: many local users bind numbers from Myanmar and Laos when registering Line. If randomly generated number segments are used, the hit rate is very low. It is necessary to accurately filter out the numbers with “Thailand number range + Line activated + Recently active”, this is the qualified customer acquisition data.
How to detect valid Line numbers in batches? ——Comparison of common methods
There are three mainstream ways to detect valid Line numbers in batches: manual verification, self-developed API system, and using a third-party screening platform. We made a table for visual comparison:
| Method | Efficiency | Cost | Technical threshold | Applicable scenarios |
|---|---|---|---|---|
| Manual verification | Extremely low (1 person/day, dozens of messages) | High (manpower + phone charges) | None | Small-scale testing |
| Self-developed API | Medium to high (needs to connect to Line API) | Extremely high (development + server + maintenance) | High | Large companies with R&D teams |
| Screening platform (such as KK-DATA) | High (10,000 minutes) | Deduction by item, see real-time price | Low (console operation) | Small and medium-sized teams, studios |
The efficiency gap between manual verification and tool screening
Imagine this: you have 10,000 Thai numbers and plan to test them by manually sending messages one by one. Assuming that each message is sent out and waits for 10 seconds to see if it is rejected, the fastest it will take is 10000×10s ≈ 28 hours - it cannot be disconnected yet. Batch testing using the screening platform can be completed in a few minutes, and labels such as activation status, activity level, and gender will be output at the same time. The efficiency gap is thousands of times.
Core considerations when choosing a screening platform
When choosing a platform, you can’t just look at “whether it can be screened”, but also ask a few questions:
- Accuracy: Can Line’s registration status be verified in real time? Some platforms use cached data, which has low accuracy.
- Covered fields: In addition to enabling detection, can gender and activity be identified? Categories with a large number of female users (beauty, maternal and infant products) require gender screening; active window segmentation (7 days/30 days) can optimize access opportunities.
- Export format: Whether to support CSV/TXT, whether to export uid (Line user ID).
- Billing Transparency: Are there any hidden subscription fees? Is the unit price clearly marked? KK-DATA adopts a per-item deduction and no subscription package model. Use now and pay later, which is suitable for flexible electricity consumption.
Complete steps to use KK-DATA to obtain a valid Line number
The following takes the KK-DATA console as an example to demonstrate the complete “Generate → Filter → Export” pipeline. Any team can get started in 10 minutes.
Step 1: Generate or import the Line number to be detected
Enter Application Console and click on the “Number Generation” module. Two methods are supported:
- Global Number Generation: Select country (Thailand, Vietnam, Japan, etc.), quantity from 100 to 1 million. The system randomly generates it according to the country number segment rules. This step is free, and the generated results can be previewed, exported or submitted directly to the screen number.
- Import Custom CSV: If you already have a list of potential target phone numbers, directly upload the CSV with the fields including country code and number.
Tips: It is recommended to generate common number segments based on the target market first. For example, for the Thai market, segment +66 is generated; for the Indonesian market, segment +62 is generated. After generation, the screen numbers are directly scheduled to form a pipeline.
Tip: The relationship between generation and screen number
Number generation is free, only the number screening task consumes the balance. It is recommended to generate a batch of target country number segments first, and then submit the Line number screening task.
Step 2: Submit the Line screening task and view the estimated cost
Return to the “Screen Number Task” module and create a new task:
- Select Platform: Line.
- Detection type: Check “Line enabled/valid” (required). If you need targeted user attributes, you can additionally check “Line Gender” (male/female identification) and “Activity”. The activity level can be selected as “7 days/30 days/90 days” and can be flexibly adjusted according to the marketing rhythm.
- Upload Numbers: Select the previously generated number list, or directly paste/upload the CSV.
- Estimated fee: The system will automatically display the estimated total deduction based on the selected detection type and number of numbers (see real-time price on the console for details). The task cannot be submitted when the balance is insufficient, and USDT needs to be recharged first.
Recharge method: USDT (TRC20), the minimum is about 50 USDT, the balance will be automatically updated after anonymous payment.
After submission, the task enters the queue and is usually completed within a few minutes to ten minutes (depending on the amount of concurrency).
Tips: Task notifications
After submission, you can receive completion notification in Telegram (bind @kkdata_robot), no need to refresh the page all the time.
Step 3: Export Line valid number and gender fields
After the task is completed, the filtering results can be downloaded on the results page. Both CSV and TXT formats are supported. Exported fields include:
-Mobile phone number (with country code)
- Whether to open Line (Yes/No)
- Recent activity flag (active/inactive)
- Gender (male/female/unknown, some include race information)
- uid (Line internal user ID, can be used for more accurate secondary matching)
Best Practice: First filter the “opened + active” numbers, then further filter by gender, and finally export. The data exported in this way can be directly used for private message promotion or imported into the audience package of the advertising platform.
Interpretation of key fields in Line filter results
After getting the export table, many users don’t know what each field actually represents. The four most commonly used fields are explained below:
- Line Registered: Whether the mobile phone number has a registered Line account. This is the basic threshold for “valid numbers”. Those that are not activated will be discarded directly.
- Activity: refers to whether the number has logged into Line within the specified time window. The more active a user is, the higher the probability of opening a message and clicking on a link. It is recommended to choose according to the marketing cycle: choose “Active within 7 days” for short-term promotion activities, and choose “Active within 30 days” for long-term cultivation.
- Gender: Gender tag inferred based on Line user profile. Can be used for gender-targeted marketing (beauty, gaming, health, etc.). NOTE: Gender recognition is not 100% accurate, but is accurate enough to support batch strategies.
- uid (Line User ID): Line’s unique internal number assigned to each user. If you cancel and re-register the same mobile phone number, the uid may change. The uid can be used for deduplication, or for further sending messages through the Line official API (authorization required).
Regarding the age field: Some results in KK-DATA’s Line gender detection include age tags (such as “about 30 years old”), but this is an auxiliary inference field and is not an age accurate to the ID card level. Please do not rely too much on it.
3 best practices to improve Line’s efficiency in obtaining valid numbers
1. Split tasks by country
Don’t sift through global numbers in one go. Line user density and number segment rules vary greatly in different countries. For example, the Thai number is +66, Vietnam is +84, and Japan is +81. It is recommended to generate → filter in batches by country to facilitate subsequent development of promotion strategies by region. When you need to segment the Southeast Asian market, screening by country is fast and clear.
2. Make good use of data deduplication warehouse to avoid repeated deductions
The same number may be used multiple times. KK-DATA provides a built-in data deduplication warehouse that automatically detects whether numbers have been filtered across tasks. If you screened a batch of Thai numbers a week ago and want to add a new gender field today, the deduplication warehouse will prompt that no duplicate charges will be deducted for numbers that have already been recorded. This can result in significant cost savings.
3. Prioritize active users and then reach them according to rhythm
Line activity windows (7 days/30 days) are different, and the results are also different. It is recommended to use them in reverse order from “active to inactive”: first use the numbers “active within 7 days” for the first round of push, and convert the highest seed users; the next week, use the numbers “active within 30 days” for the second round; and finally use the numbers “within 90 days” for wake-up. This can maximize the value of each piece of data and avoid pushing it all at once.
FAQ
**Q: How accurate is Line’s detection of valid numbers? **
Answer: KK-DATA’s Line screening number is based on real-time verification of official registration data, which can accurately determine whether the number has opened a Line account; activity detection is based on historical online behavior, with a high accuracy rate. The specific results are subject to the real-time results of the console. It is recommended to test each task in small batches.
**Q: Can the “gender” field in the export results be used for precise delivery? **
Answer: Yes. Line gender recognition can distinguish male/female (some fields contain race information), and is suitable for gender-oriented marketing scenarios, such as investing in female products for women and male for games. The age field is for auxiliary reference only and is not a precise ID card level.
**Q: How many Line numbers can be filtered at one time? **
Answer: The maximum number of items in a single task is about 1 million; it is recommended to upload in batches by country or number segment to facilitate management of results. Tasks cannot be submitted when the balance is insufficient, and USDT needs to be recharged in advance.
**Q: How is the price of Line screen size calculated? **
Answer: Fees are deducted on a per-item basis. Different detection types (activated/active/gender) have different unit prices. See the real-time price on the console for details. There is no subscription package. After the task is completed, it will be deducted from the balance and you pay for what you use.
**Q: How to ensure that Line screen numbers are not deducted repeatedly? **
Answer: The platform has a built-in data deduplication warehouse, which can automatically remove duplicate submissions of detected numbers across tasks to avoid wasting balances. When you re-vote the same batch of numbers with a different detection type, only the new part will be scanned.
That’s the complete guide to getting a valid number for Line. If you want to be one step ahead in acquiring customers in Southeast Asia, you can start trying now: first generate the target country number, and then submit the Line filter number to get real and accessible user data.
👉Log in to the console to start screening numbers Two-way contact customer service https://t.me/kkdata_robot Official website https://kkdata.cc/ · Use documentation https://docs.kkdata.cc/
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