10 Questions and Answers on Number Screening Sources: The Ultimate Guide to Telegram/WhatsApp Number Screening FAQs (2025)

Are you repeatedly tortured by problems like “invalid numbers”, “sending blocked”, or “extremely low reply rates” when acquiring overseas customers? The core reason is often not that your marketing copy is bad, but that the number source and verification stages are flawed. This article focuses on 10 high-frequency questions about number screening sources, covering principles, platform selection, billing models, and data security in one go. Whether you are a beginner new to Telegram/WhatsApp number screening or an experienced user looking to optimize your current workflow, this guide will help you save time and costs.

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1. What is a Number Screening Source? Why Must You Screen Numbers from the Source for Overseas Lead Generation?

A number screening source refers to the platform-level verification stages that numbers must go through from generation or collection to final marketing use. In other words, numbers themselves are just raw materials; only after being detected by a screening platform with labels like “active”, “online”, “gender” can they become deliverable valid leads.

1.1 The Relationship Between Number Generation and Number Screening

Many teams think that “generating 100,000 numbers” is enough. In reality, number generation (e.g., KK-DATA supports random generation for 240+ countries, prefix generation, custom CSV import) is only the first step. Among these raw numbers, there are many empty numbers, unregistered numbers, or numbers that have been inactive for a long time. Using them directly for mass messaging or private chats not only wastes sending costs but also triggers the platform’s anti-spam mechanism.

An efficient workflow should be: Generate numbers → Multi-platform number screening (active/online/gender) → Export valid leads. KK-DATA’s pipeline design is built around this logic. Users can first generate numbers for free in the console, then submit screening tasks, and finally export results as CSV or TXT.

1.2 Five Consequences of Not Screening

Consequence	Explanation
1. High sending costs	A large number of invalid numbers consume SMS/API fees, resulting in extremely low ROI.
2. Triggering account bans	High-frequency invalid sending can lead to temporary or permanent bans on Telegram/WhatsApp accounts.
3. User complaints	Harassed users may report, intensifying platform risk control.
4. Data contamination	Unscreened numbers mixed into CRM affect subsequent analysis and tracking.
5. Repetitive marketing	Sending to the same number multiple times wastes budget and causes resentment.

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2. What Detection Types Are There for Telegram Screening? How is Activity Defined?

Telegram number screening is one of the most common scenarios for overseas lead generation. Different detection types correspond to different usage purposes:

• tg Registration (Registration Check): Confirms whether the number has already registered a Telegram account. Suitable for initial screening before large-scale user acquisition.
• tg Valid (Can Receive Messages): Checks if the number can normally receive messages. Stricter than “registration”, it excludes some restricted accounts.
• tg Active: Determines user activity based on behavioral data from the last 7/15/30 days (login, sending messages, online status, etc.). It is recommended to prioritize numbers “active in the last 7 days” for the highest reply rate.
• Gender Recognition: AI recognition based on profile pictures, aiding targeted marketing (e.g., beauty brands selecting female users).
• tgid Export: Exports Telegram user IDs, convenient for subsequent API operations (e.g., adding members to groups, bot interactions).

Activity window directly affects marketing pace:

• 7 days active → High reply rate, suitable for promotions, event notifications.
• 15 days active → Moderate activity, suitable for brand exposure, product introductions.
• 30 days active → Long-tail users, lower cost, but need to adjust copy.

In practice, it is recommended to first test the reply rate of different windows with a small batch before deciding on the main focus.

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3. What Are the Differences Between WhatsApp Screening and Telegram Screening? How to Choose?

Dimension	WhatsApp Screening	Telegram Screening
Detection types	Valid number detection + wsid export	Registration/valid/active/gender/tgid export etc.
Marketing scenario	One-on-one private messaging, suitable for e-commerce notifications, customer service	Groups, channels, private messages, suitable for community management
Platform policy	Strict risk control, tighter control on sending frequency	Relatively lenient, but mass sending still has limits
User demographics	High penetration in Southeast Asia, Latin America, Europe	Mainly Russia, Iran, some European countries

Selection Advice: If your target market is Southeast Asia, Latin America, and users are accustomed to WhatsApp, focus on WhatsApp screening but pay attention to sending volume control. If you want to do community viral marketing or need gender segmentation, Telegram’s activity detection and gender recognition are more advantageous. In fact, you can do both: first generate numbers in bulk via the number generation module, then submit tasks for different platforms separately.

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4. How to Choose a Screening Platform? Objective Comparison of 007data, thdata, and KK-DATA

The mainstream screening platforms on the market have similar functions, but the details may affect user experience. The following objective comparison is based on three dimensions; users can choose according to their actual needs.

Comparison Dimension	007data	thdata	KK-DATA
Detection types	Supports Telegram registration/valid/active	Supports WhatsApp valid/active	Telegram registration/valid/active + gender recognition + tgid export; WhatsApp valid + wsid export; RCS/empty number detection
Global number generation	Yes	Yes	Random generation for 240+ countries, prefix generation, CSV import, free to generate
Deduplication warehouse	Supported	Supported	Cross-task number deduplication to avoid duplicate charges
Billing model	Subscription + per piece	Subscription + per piece	No subscription, pure per-piece deduction, anonymous USDT recharge
Billing transparency	Need to check package prices	Need to check package prices	Estimated cost displayed before task submission, no hidden fees
Data export	CSV/TXT	CSV	Multiple format export CSV/TXT
Notification method	Email	Email	Telegram task completion notification

KK-DATA’s differentiated advantages:

• No subscription packages: Suitable for small and medium teams with fluctuating demand, pay for what you use.
• Anonymous USDT recharge: Minimum approximately 50 USDT, protects financial privacy.
• Cross-task deduplication: Avoids duplicate detection of the same number, saving balance.

Note: The above comparison is based on publicly available information. Specific functions are subject to each platform’s actual console. No intention to disparage; users can log in and try before deciding.

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5. In-depth Analysis of Screening Platform Billing Models: Why Is Per-Piece Deduction More Flexible Than Subscription?

Subscription packages (fixed monthly/yearly fee + per-piece surcharge) may seem cost-effective but often result in waste for overseas lead generation teams:

• During peak seasons, tasks require additional volume packs; during off-seasons, unused package quotas are wasted.
• Tied up with high prepayments; if strategy changes, funds are locked.

KK-DATA’s per-piece deduction logic:

1. Balance top-up: Recharge via USDT (TRC20), minimum approximately 50 USDT.
2. Per-piece deduction: After the screening task is completed, the corresponding fee is deducted from the balance. The console displays the estimated cost before task submission, ensuring predictable expenses.
3. Insufficient balance: Cannot submit new tasks; need to top up to continue.
4. No expiration risk: The balance is valid indefinitely, unlike subscription quotas that expire.

For small and medium teams, this model is flexible and controllable, especially suitable for scenarios that require frequent adjustments to the screening volume and platform.

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6. Data Security and Stability: Can Screening Platforms Guarantee Number Privacy?

Overseas lead generation often involves a large number of user numbers, and data security is a core concern.

6.1 How to Identify Fake Customer Service and Websites?

Recently, there have been cases of scammers impersonating screening platform customer service. Legitimate platforms have the following characteristics:

• Unique official domain (e.g., kkdata.cc), and provide an official Telegram channel and customer service ID (e.g., @kkdata_cc).
• The official team will not proactively send private messages asking for passwords or transfers.
• If you receive any private message claiming to be “customer service”, verify the contact information on the official website or documentation first.

KK-DATA has set up anti-fraud verification reminders in the console and on the website. Users can verify customer service identity on the official channel @kkdata_channel.

6.2 Can Task Data Be Deleted After Export?

Compliant platforms typically allow users to manually delete task data after exporting results. KK-DATA’s deduplication warehouse is used only for internal deduplication verification and does not retain exported detailed results. Users can freely manage task history in the console; after deletion, the platform no longer stores the relevant numbers. This protects privacy and meets data security regulatory requirements.

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7. The 10 Most Frequently Asked Questions About Number Screening Sources (FAQ Collection)

1. Will screening drain my numbers?
   No. Screening only verifies the status of numbers, does not change number attributes, and will not cause numbers to become “invalid” or “marked”.

2. What is the maximum number of numbers for a single task?
   KK-DATA supports a maximum of approximately 1 million numbers per task. It is recommended to submit in batches as needed to increase success rate.

3. How accurate is Telegram gender recognition?
   Based on AI recognition of profile pictures, accuracy is 80%–90% (depending on picture clarity), suitable for targeted reference.

4. What is the use of WSID export?
   WSID is WhatsApp’s internal user identifier, which can be used for message sending via WhatsApp Business API to avoid being blocked.

5. Can generated numbers be directly used for marketing?
   No. Generated numbers are only random prefixes; they must go through screening (registration/active detection) to ensure they are real users.

6. Will unused balance expire?
   No. KK-DATA balance is valid indefinitely with no expiration risk.

7. Why are some detection results “unknown”?
   Possible reasons: incorrect number format, platform temporarily unable to connect, carrier restrictions. Check number format or retry later.

8. Can I perform mixed platform screening?
   Yes. In the console, you can first submit a Telegram screening task, then a WhatsApp screening task, but you must select the detection platform and detection type separately for each task.

9. What if screening fails?
   Check network stability, number format (with country code, no spaces), or contact customer service @kkdata_cc for troubleshooting.

10. How to contact technical support?
    Via Telegram customer service @kkdata_cc or the Contact Us page on the official website. Fast response during working hours.

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Frequently Asked Questions

Q: Which is more suitable for Telegram screening, 007data or KK-DATA?
A: Both support Telegram registration/active detection, but KK-DATA additionally supports gender recognition (based on profile picture AI) and tgid export, and uses no-subscription per-piece deduction, suitable for small and medium teams to flexibly control costs. It is recommended to log in to the console to compare and experience the specific functions.

Q: Why does the number screening source mention “registration” and “active” as two concepts?
A: “Registration” means the number has completed Telegram/WhatsApp registration; “active” means there has been recent usage behavior (e.g., sending messages, going online). For marketing, you should prioritize “active” numbers to improve reply rates, and avoid only screening for “registered” numbers, which may lead to silent reach.

Q: Will numbers generated using a screening platform be marked as spam numbers?
A: The number generation module only generates numbers randomly based on prefix rules and does not involve any sending behavior. What really affects marking is the sending frequency, content quality, and user complaints during marketing. It is recommended to separate screening tools from sending tools and strictly adhere to each platform’s daily sending limits.

Q: Does KK-DATA support RCS and empty number detection?
A: Yes, the platform supports RCS (Rich Communication Services), empty number, and carrier detection. Specific detection types and unit prices are based on real-time display in the console. You can check the “Detection Type List” in the console.

Q: Can the balance be refunded after top-up?
A: The platform uses USDT (TRC20) for top-up, and the balance is only used for screening task deductions. Refunds are not supported. It is recommended to recharge a small amount first to verify effectiveness, then top up according to demand.

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Take Action Now: Log in to the Application Console to experience screening tasks, or refer to the Development Documentation for number generation/detection APIs. For any questions, contact Telegram customer service @kkdata_cc for one-on-one answers. Follow the Official Channel for the latest features and offers.