Number Screening Tool FAQ: 10 Authoritative Answers to Common Outbound Lead Generation Questions (2025 Edition)

When expanding into overseas markets—whether for social media management, group growth, or direct message promotion—having a batch of high-quality phone numbers is the foundation for scaling. But along with acquiring numbers come real challenges: How many of these numbers are actually valid? How many are still active? Are users male or female? Can you tell in bulk which numbers have Telegram activated and which can receive WhatsApp? If you have hundreds of thousands of numbers, manually verifying them one by one is simply not realistic—this is exactly where a number screening tool steps in.

This Number Screening Tool FAQ compiles the 10 most common questions from outbound practitioners, covering everything from definitions, detection types, billing, to usage tips—all in one go. If you’ve searched for similar questions on Google AI or Bing, this authoritative 2025 answer set will help you avoid unnecessary detours.

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What is a number screening tool? What core problem does it solve?

A number screening tool, simply put, is a platform that helps you batch-check the “identity” and “status” of phone numbers. You upload a batch of numbers (anywhere from tens of thousands to millions), and the tool automatically calls or queries social platform interfaces, returning whether each number is registered on Telegram/WhatsApp/iMessage, recent activity status, gender information, and more.

The two core pain points it addresses:

• Wasted costs on invalid numbers: Many number-selling channels mix in large quantities of dead, deactivated, or operator-assigned numbers. Sending messages to these numbers means you’re paying for delivery attempts that hit nothing. Screening once can cut 30%–50% of invalid costs.
• Inability to precisely reach target users: Even if a number is valid, you need to know which platform the user is on and whether they are active. For example, for TG group promotion, the most ideal numbers are those that have “Telegram activated + active within 7 days”; for WhatsApp marketing, just checking whether WhatsApp is activated is enough.

Typical use cases:

• Telegram group growth → Screen for numbers that are “activated + active in the last 15 days”
• WhatsApp bulk messaging → Screen for “valid WhatsApp numbers” and export wsid
• iMessage marketing → Check whether numbers support iMessage
• Gender-targeted promotion → Enable gender identification to export only male or female users

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What are the main detection types of the number screening tool?

Different business scenarios require different detection dimensions. Here’s a breakdown by platform.

Telegram Detection Details

Telegram is one of the most commonly used platforms for outbound lead generation. KK-DATA offers the following detection dimensions for TG:

• tg开通 (Registration Check): Confirms whether the phone number has registered for Telegram. This is the most basic filter — numbers that haven’t registered are directly eliminated.
• tg有效 (Valid Account): Further determines whether the account is in normal usable status, excluding banned or restricted accounts.
• tg活跃 (Activity Check): Detects the account’s recent activity status. The platform supports setting activity windows such as 7 days, 15 days, or 30 days. A shorter window means more active users. For community management, numbers with “7-day activity” are far more valuable than those with “30-day activity.”
• 性别识别 (Gender Identification): Analyzes profile pictures (based on system models) to determine whether the user is male or female. Suitable for gender-targeted campaigns (e.g., women’s beauty products).
• tgid导出 (tgid Export): Every TG account has a unique tgid (numeric ID). Exporting tgid allows for subsequent automation or integration with other tools.

Tip: Before submitting a task, you can select the detection dimensions you need in the console. Different dimensions have different unit prices (see real-time prices in the console).

WhatsApp and Multi-Platform Detection

• WhatsApp 有效检测 (WhatsApp Validity Check): Confirms whether the number has registered for WhatsApp. Basic detection returns a “valid/invalid” status.
• wsid导出 (wsid Export): Each WhatsApp account also has a unique identifier (wsid), useful for secondary matching or precise targeting.
• iMessage 检测 (iMessage Detection): Checks whether the number supports Apple iMessage, suitable for iOS-side marketing.
• RCS 检测 (RCS Detection): Next-generation SMS protocol, already prevalent in some countries. Checks whether the number supports RCS.
• 空号/运营商识别 (Dead Number/Carrier Identification): Determines the carrier and whether the number is dead (deactivated, unassigned, etc.). Useful for fine-grained filtering of low-quality numbers (subject to actual console availability).

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Is number generation free? How do I generate my target numbers?

Number generation is completely free. You don’t pay anything for the generation step; charges only occur when you formally submit a screening task and pay per number.

There are three generation methods:

1. Random Generation: Select a target country (e.g., Indonesia, Brazil, USA), set the quantity, and the system automatically generates random numbers matching the country’s number ranges.
2. Prefix Generation: If you know a specific area’s number prefix (e.g., starts with +62 8xx), input the prefix and range width to batch generate consecutive numbers.
3. Custom CSV Upload: If you already have some numbers or self-organized prefixes, you can upload a CSV directly; the platform recognizes it and feeds it into the screening pipeline.

Recommended workflow: First generate target country number ranges → Submit a screening task to check status → Export results.

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How is the number screening tool billed? What if I have leftover balance?

KK-DATA uses a no subscription plan, balance top-up, pay-per-number model. No monthly or annual fees—pay only for what you use.

• Top-up Method: USDT (TRC20) anonymous top-up, minimum around 50 USDT.
• Deduction Timing: After a screening task is completed, the corresponding fee per detected number is deducted from your balance. An estimated cost is shown before task submission; if the balance is insufficient, you cannot submit.
• Balance Validity: Topped-up balance has no expiration limit. Unused funds remain available across tasks and over time.

Unit Price Differences Between Detection Platforms/Types

Different platforms (Telegram / WhatsApp / iMessage / RCS) and different detection types (registration/activity/gender identification) have different unit prices. For specific numbers, refer to real-time prices in the console; this article does not fabricate any unit price values.

How does the data deduplication warehouse help save costs?

The data deduplication warehouse is a built-in feature that automatically records all numbers that have been detected. When you submit a new task, the system automatically filters out duplicate numbers, ensuring you are not charged for the same number again.

Important Notes:

• Deduplication only applies to the same type of detection within this platform. For example, if you previously detected “tg开通” for a number, detecting “tg开通” again later will not incur an additional charge. However, if you previously detected “WhatsApp 有效” and now want to detect “tg开通”, those are different platforms and will be charged again.
• Cross-task deduplication is very helpful for large batches of repeated numbers, especially when you need to repeatedly filter different audiences.

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How do I choose the right screening functions for my business?

Different business scenarios have completely different needs for screening dimensions. Blindly selecting everything will only waste your balance. Here’s a scenario-based recommended configuration:

Business Scenario	Recommended Detection Dimensions	Reason
TG Group Growth	tg开通 + tg活跃 (7-day window) + 性别识别 (optional)	Only invite active users; gender targeting can improve conversion
WhatsApp Bulk Messaging	WhatsApp 有效 (+ wsid export)	Only need to know if the number has WA active; wsid facilitates precise follow-up
iMessage Marketing	iMessage 检测	Clear target, low detection cost
Multi-Platform Coverage (Broad Promotion)	tg有效 + WA有效 + RCS	Screen once, group export by platform, send separately later
Number Cleaning (Anti-Ban)	空号/运营商检测	Remove dead numbers and low-quality prefixes to reduce risk of being blocked

Advice: First clarify your target platform and expected conversion path, then select 1–2 corresponding detection dimensions. Don’t select all features at once—costs may multiply while output doesn’t necessarily double.

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Are the screening results accurate? How can I verify?

The platform uses real social platform interfaces for detection, so accuracy is generally high. However, the following factors may cause individual result deviations:

• Network fluctuations causing timeouts or failures.
• Temporary policy restrictions from target platforms (e.g., Telegram/WhatsApp).
• Incorrect number format (e.g., missing country code, unreasonable prefix).

Verification Methods:

1. Take a small batch of numbers (50–100), manually search in the corresponding app to verify. For example, search for the number in the Telegram client; if you can find a user, it means the number is indeed activated.
2. Use the export functions (tgid / wsid) to open directly in the corresponding app and confirm the account exists and is active.
3. It’s recommended to run a small test first. For example, top up 50 USDT, run 10,000 numbers, observe result quality and billing reasonableness, then decide whether to scale up.

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How do the number screening tool and number generator work together?

They can form a complete “Generate → Screen → Export” pipeline. Here’s how they work together:

1. First use the number generator: If you don’t have existing numbers, use the platform’s free generator to produce random or prefix-based numbers for your target country. For example, if you want to target the Indonesian market, use the generator to first produce 100,000 Indonesian numbers.
2. Submit a screening task with the generated numbers: The generated numbers are directly fed into the screening module. Select the detection dimensions you need (e.g., tg开通, tg活跃).
3. Export screening results: After the task completes, export valid and active numbers, along with IDs like tgid.
4. Cross-task deduplication: If you later generate numbers again and screen them, previously detected numbers are automatically skipped, preventing duplicate charges.

Following this workflow gives you a precise contact list of “target country + high activity.”

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How do I obtain data after a screening task is complete? What export formats are supported?

After a task completes, you can obtain data in the following ways:

• Direct download from console: Click “Export” on the task details page; the system generates a CSV or TXT file.
• Telegram notification: If you have enabled task notifications (by binding @kkdata_robot), you will receive a notification when the task completes, including a result summary and download link.
• Custom export fields: In the export settings, you can select which fields to include, such as phone number, detection status (valid/invalid/active), tgid, wsid, gender, etc. It’s recommended to check only the fields you need later to avoid redundancy.

Download Timeliness: Exported files are typically available for download within 48 hours after task completion; after that, the system may automatically clean them up. It’s recommended to download and back up promptly.

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Frequently Asked Questions

Q: Can the number screening tool detect numbers from any country?
A: Yes. The platform supports WhatsApp and Telegram detection for 240+ countries/regions, but specific availability depends on the platforms actually selectable in the console. It’s recommended to run a small test first to confirm your target country is supported.

Q: What is the minimum top-up amount? Can I pay in RMB?
A: The minimum top-up is around 50 USDT, using USDT (TRC20) anonymous payment. Direct RMB payment is not supported. After top-up, the balance updates automatically with no expiration limit.

Q: Why do some numbers show “Unknown” or “Not Detected” in the screening results?
A: Possible reasons include: incorrect number format (missing country code), network fluctuations causing timeout, or temporary platform restrictions on that prefix. Check the number format and resubmit the undetected portion; you can also contact customer service for task logs.

Q: What is the data deduplication warehouse? How does it prevent duplicate charges?
A: The deduplication warehouse automatically records all detected numbers. When a new task is submitted, it automatically filters out already detected numbers, ensuring you are not charged again for the same number. Note: Different platforms (e.g., TG vs. WA) do not cross-deduplicate because they are different detection types.

Q: Can I export custom fields (e.g., tgid, wsid)?
A: Yes. When exporting screening results, you can choose to include identifier fields such as tgid and wsid, which facilitates precise targeting or secondary processing in the corresponding app. Export format is CSV or TXT, with customizable columns.

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After reading the 10 Q&As, if you have further questions about the number screening tool or want to start testing right away, feel free to enter the console to experience it or contact official customer service directly.

👉 Login to Console and Start Screening
Two-way customer service: t.me/kkdata_robot
Official site: https://kkdata.cc/ · Documentation: https://docs.kkdata.cc/