Free Number Generation & Pay-Per-Validation Model Explained: Reduce Overseas Customer Acquisition Trial Costs with “Zero-Cost Generation + Pay-as-You-Go”

For overseas marketing teams, batch acquiring target users’ contact info is the first step to launching Telegram/WhatsApp community operations or direct messaging campaigns. However, traditional models either require purchasing whole batches of numbers (including many invalid ones) or subscribing to expensive monthly plans, leading to high trial-and-error costs. The free generation + pay-per-validation model completely changes this — number generation is zero-cost; you only pay when you actually validate. This article will detail the model’s logic, three free generation methods, flexible billing mechanisms, and how to use it to reduce your customer acquisition trial costs.

What Is the “Free Number Generation, Pay Per Validation” Model?

This model splits the workflow into two completely independent stages:

Generation Phase: You can create candidate numbers unlimitedly and infinitely via Random Generation, Prefix Generation, or CSV Import — the platform charges nothing.
Validation Phase: Only when you submit a validation task (e.g., account activity, gender detection) for a batch of numbers, you are charged per number from your balance. Charges occur only after validation completes; unvalidated numbers incur no cost.

Compared to the traditional “pay first to use” subscription model, this two-stage design allows users to explore data at zero cost, significantly lowering the barrier to initial trials.

What Does Free Generation Mean?

Free generation means you can:

Choose from 240+ countries/regions to randomly generate millions of numbers.
Generate numbers based on country, carrier, or prefix combinations.
Import your own custom prefix files via CSV (e.g., prefixes from public directories or industry databases).

All generation operations do not affect your balance. The purpose is to let you confidently build a candidate number library without bearing any cost for invalid or guessed numbers.

How Does Pay-Per-Validation Work?

Before submitting a validation task, the system displays an estimated charge amount, allowing you to decide whether to proceed. After the task completes, the actual cost is deducted from your USDT balance. Different platforms (Telegram / WhatsApp / iMessage / RCS) and different validation types (account existence, activity detection, gender recognition) have different unit prices. For real-time prices, please log in to the App Console. Insufficient balance will prevent you from submitting new tasks — top up first.

Three Ways to Generate Numbers for Free

The following three methods allow you to obtain a large number of candidate numbers at zero cost, suitable for different scenarios:

Random Generation (240+ Countries)
Select a target country (e.g., India, Indonesia, USA) and click “Random Generate”. The system will assign numbers from active prefixes in that country. Ideal for initial broad testing to quickly understand activation rates in different countries.
Prefix Generation (By Country + Carrier + Prefix)
If you already know a specific carrier (e.g., Telkomsel, AT&T) or a specific prefix (e.g., starting with 62812) in the target country, you can generate numbers precisely. Suitable for scenarios requiring precise targeting of certain user groups.
CSV Import (Custom Prefix File)
Upload a CSV file containing prefix ranges, and the system will automatically expand them into individual numbers. Good for quickly batch-generating numbers from external data sources (e.g., industry reports, public number databases).

Generated numbers can be exported directly (free) or stored temporarily on the platform for later validation. We recommend exporting a backup after each generation before submitting validation to avoid wasted effort from regenerating.

How Pay-Per-Validation Makes Budgets More Flexible

The core advantages of the pay-per-validation model:

No subscription, no minimum consumption: You only need a minimum recharge of about 50 USDT (via USDT TRC20 anonymous deposit) to start. No monthly or annual commitment — pay only for what you use.
Granular tasks: You can validate just 100 numbers to verify the accuracy of a country or prefix, or submit a batch of 1 million for filtering. Budgets can range from small to large freely.
Cost estimation before tasks, no hidden costs: Before submitting a task, the system clearly shows the estimated charge. You can cancel or adjust the task size at any time.

Cost Estimation Before Tasks to Control Expenses

When creating each validation task, the page displays “Estimated Cost: XX USDT”. If it exceeds your mental budget, you can reduce the number, change the validation type, or switch platforms. This mechanism effectively prevents unexpected overspending.

Data Deduplication Warehouse Avoids Repeated Charges

The platform has a built-in data deduplication warehouse: before submitting validation, you can import already-validated numbers into the warehouse, and the system automatically identifies and skips them. Thus, even if multiple tasks use the same numbers, you won’t be charged twice, further reducing the per-unit cost.

How to Leverage “Free Generation + Pay-Per-Validation” to Reduce Trial Costs

The key to reducing trial costs: You only pay for a batch of numbers when you’ve confirmed their value. Here’s a typical low-trial-cost workflow:

Generate multiple batches of candidate numbers for free
For a target country or prefix, use random or prefix generation to create 5–10 different batches, each 10k–100k numbers — all free.
Small-scale validation
From each batch, extract 1000 numbers and submit “Telegram account existence check” or “WhatsApp validity check” to see which batch has the highest validity/activity rate.
Eliminate low-efficiency batches, expand high-efficiency ones
Based on results, discard invalid batches. For high-converting batches, generate more numbers and perform full validation.
Deduplicate and export
Merge identical numbers across batches using the deduplication warehouse to avoid paying twice. Finally, export active numbers for adding members or direct messaging.

Throughout this cycle, generation is completely free; only numbers deemed valuable incur validation costs. Compared to traditional models (buying the entire batch upfront and hoping), trial costs are reduced by 80%–90%.

Key to Trial Costs

Number generation is completely free, meaning you can confidently generate 100k non-repeating numbers for multi-dimensional testing without paying for invalid numbers. You pay only when you decide to validate a batch for validity, activity, or gender. This allows the “small-scale validation → elimination → regeneration” trial cycle to proceed rapidly at almost zero cost.

Typical Use Case: Best Practices for Overseas Marketing Teams

Example: A Southeast Asian e-commerce team wants to run Telegram community promotion:

Generation Phase: Log in to the App Console, select Indonesia’s Telkomsel prefix, and randomly generate 500k numbers (free).
Deduplication: Import generated numbers into the deduplication warehouse to clean duplicates (free).
Validation Phase: Submit a “Telegram active detection (last 7 days)” task. Only the deduplicated valid numbers are charged (approx. 300k numbers, per-number billing).
Export Results: After validation, export active numbers (CSV/TXT format) for importing into community tools for member addition.
Cost Analysis: If the batch’s activity rate is 15%, you get 45k valid users. Total validation fee = 300k numbers × unit price (see console). Compared to buying 500k numbers upfront (where maybe 90% are invalid), paying only for validated results makes ROI more controllable.

Best Practice Recommendation

Follow the pipeline: “Generate → Deduplicate → Validate → Export”. First, batch create candidate numbers in the generation module (free), then import them into the deduplication warehouse to remove duplicates, then submit validation tasks, and finally export results. This minimizes duplicate validation fees and reduces the per-unit valid cost to the minimum.

Comparison with Traditional Subscription Models

Dimension	Traditional Subscription Model	KK-DATA Free Generation + Pay-Per-Validation
Upfront Investment	Requires prepaying monthly/annual fees, at least hundreds of USDT	Only need a minimum recharge of ~50 USDT
Number Acquisition	Usually need to purchase numbers separately (extra cost)	Number generation is free, no extra cost
Cost Structure	Fixed subscription — pay whether you use it or not	Pay per validated number — pay only for what you use
Trial Flexibility	Low — can’t easily change direction before using up subscription quota	High — can stop or switch targets/platforms anytime
Suitable Scenarios	High-frequency, high-volume, fixed-budget mature teams	Small/medium teams, fluctuating demand, initial testing

For small/medium teams, cross-border e-commerce, and independent site promotion teams, the free generation + pay-per-validation model is clearly more cost-effective. Even high-frequency high-volume teams can achieve elastic billing via on-demand top-up (minimum 50 USDT), which is more flexible than long-term subscription lock-in.

Usage Notes & Cost Control Tips

Insufficient balance prevents task submission: Ensure sufficient balance before submitting tasks. If planning for long-term use, consider recharging a moderate amount (e.g., 200–500 USDT) to avoid frequent operations.
Max task size: Currently, a single task supports up to about 1 million numbers. For larger validation, split into multiple tasks.
Different validation types have different unit prices: For example, Telegram existence check and activity detection have different prices; gender recognition is extra. Confirm the type and estimated cost before submission. Check real-time prices on the Console or the Official Pricing Page.
Use deduplication warehouse wisely: Deduplicating before each validation can save significant costs. If you submit the same numbers multiple times without deduplication, you’ll be charged for the duplicates (with a warning).
CSV import format: The import file must follow requirements (one column of numbers or prefixes). Format errors may cause generation failure. See the Documentation for examples.

Frequently Asked Questions

Q: Does free generation mean I can generate unlimited numbers?
A: Yes. The number generation module (random, prefix, CSV import) of KK-DATA does not charge any fees. You can generate any number of candidate numbers as needed; you only pay when you actually validate them.

Q: What are the prices for pay-per-validation?
A: Prices vary by platform (Telegram/WhatsApp/iMessage/RCS) and validation type (existence, activity, gender, etc.). Please log in to the Console for real-time prices or check the Official Pricing Page.

Q: Can I get a refund for my balance? How to top up?
A: Balance is topped up via USDT (TRC20), minimum ~50 USDT. After top-up, it updates automatically. Unused balance is non-refundable — we recommend recharging according to actual needs. Insufficient balance will prevent you from submitting new tasks.

Q: If the same number is validated multiple times, will I be charged repeatedly?
A: The platform provides a data deduplication warehouse. You can import already-validated numbers to skip duplicates, avoiding repeated charges. We recommend deduplicating before each validation.

Q: Can the free generation model really reduce trial costs?
A: Yes. In traditional models, you must purchase numbers or subscribe before testing. With KK-DATA, you can generate a large number of candidate numbers for free and only pay for validating those that have shown potential. This transforms trial costs from “buying the whole batch” to “paying per validated result”, significantly reducing initial investment.

Log in to the App Console now to experience free generation, or refer to the Documentation for detailed steps. For assistance, contact customer service via Telegram @kkdata_robot.

Detailed Explanation of Free Number Generation with Per-Number Filtering: Reduce Trial Costs for Overseas Customer Acquisition with 'Zero-Cost Generation + Pay-as-You-Go'

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