Guide to obtaining and stratifying active WS numbers in the United States: How cross-border e-commerce companies can accurately screen high-quality WhatsApp accounts in the U.S. market

In the private domain marketing of cross-border e-commerce, WhatsApp is an important channel to reach American consumers. But what really determines the conversion rate is not the number of numbers, but the quality of the numbers. This article focuses on the acquisition and stratification method of “US active WS numbers” to help the team screen out user data with high reach rate and low unsubscription rate from the source, so as to avoid wasting budget on invalid numbers. We will provide practical step suggestions based on the actual operation process of the KK-DATA screening platform.

What is a US active ws number? Why does cross-border e-commerce need it?

Active ws number in the United States refers to a mobile phone number registered in the United States that has recently (such as within 7 days/30 days) logged in or used WhatsApp. This type of number is essentially different from ordinary number segments (unverified random numbers) or zombie numbers that have not been used for a long time:

• High reach rate: Active users are more likely to see and respond to messages, and the unsubscribe rate is low.
• Real User Portraits: Active behaviors combined with fields such as gender and age (WhatsApp screen numbers support gender recognition) can help target local American consumers or specific groups.
• Suitable for private domain precipitation: It is easier for active users to enter the interactive process, such as community invitations and promotion push.

If a cross-border e-commerce team directly purchases a “list of US mobile phone numbers” from unknown sources, it often contains a large number of empty numbers, unregistered WhatsApp numbers or deactivated numbers. By proactively screening US WS active data, the cost of invalid contact can be significantly reduced and the delivery rate of initial messages can be improved.

Three major preparation steps for cross-border e-commerce before using US WS active data

Before officially screening US active ws numbers, it is recommended to complete the following preparations to avoid blind operations:

Step 1: Clarify the target group and market segmentation

-Are you targeting American English-speaking consumers or American Chinese groups?

• Is gender/age targeting required? (For example, female users over 30 years old)
• Is it necessary to combine with other platforms (such as Telegram, iMessage) for cross-validation?

After the portrait is clarified, subsequent number segment selection and filter number field checking will be more targeted.

Step 2: Prepare candidate number pool

Don’t buy listings directly. It is recommended to use a number generation tool to create a candidate pool:

• Use KK-DATA’s “Global Number Generation” function and select United States to generate number segments by state or city (such as California, New York).
• If you already have some real seed numbers (such as old customer data), you can import it into CSV and the system will automatically expand it according to the US number range.
• Generate for free, no balance consumed. It is recommended to generate 100,000 to 500,000 entries as initial candidates.

Step Three: Understand Compliance Red Lines

• Unauthorized advertising cannot be sent in batches (violating CAN-SPAM or local regulations).
• The first message should be personal and relevant to avoid being marked as spam.
• Control the sending frequency: It is recommended that the daily sending volume of a single account is less than 5,000, and it should be coordinated with multiple account rotation.

How to stratify the list of active US WS numbers obtained?

After the screening is completed, you will get an original list containing statuses such as “opened” and “active”. It is recommended to clean and group according to the following three levels:

Level	Filter conditions	Marketing strategy	Cost investment
T1	Open + active (within 30 days)	Priority reach: send benefits/discounts, guide people to join the group	High
T2	Open + active (within 90 days)	Medium priority: wake-up messages can be sent	Medium
T3	Only activated, no recent activity	Low priority: one-time test can be performed to avoid high-frequency interruption	Low

If you use KK-DATA’s WhatsApp filter and check “Activity Detection + Gender Identification”, the export fields will include gender and age (for example, female, around 30 years old). At this time, it can be further subdivided according to “T1 + women + 25-40 years old” to target domestic female consumers in the United States.

Compliance access preparation and best practices for active WS numbers in the United States

After getting the pure list of US active WS numbers, the contact link also requires skills:

• Personalize first message: Do not send direct links or ads. You can use a phrase like “Hi [Name], we noticed you’re interested in [product]. Here’s a 10% off code – how to redeem?”
• Control sending rhythm: No more than 200 messages per hour for a single account, no more than 5,000 messages per day. Excessive usage can easily trigger WhatsApp restrictions.
• Use multiple accounts for rotation: The WiFi environment can be used with multiple cards, multiple machines or cloud phones to spread out the sending volume.
• Combined with CRM records: Include wsid (WhatsApp internal ID) when exporting, which can mark the contacted number in CRM to avoid duplication.

List cleaning and deduplication before reaching

Even if the active list is obtained after screening, there may still be duplicate numbers between different batches of tasks. Using KK-DATA’s “Data Deduplication Warehouse” function, you can remove duplicates across tasks, avoid repeated detection or repeated contact of the same number, and reduce balance losses.

Operation process:

1. Import the filtered active numbers into the deduplication warehouse.
2. The warehouse automatically compares all historical task results.
3. Export the clean list with duplicates removed (CSV/TXT format).

Cooperate with other platform number cross-validation

If your users are active on Telegram, iMessage or Line at the same time, cross-screening can be performed. For example: Verify that a certain number has both WhatsApp and Telegram. The cross-validated number has a higher reach rate and can be used in multi-platform private domain matrices.

KK-DATA supports multiple platforms such as Telegram, WhatsApp, iMessage, Line, Zalo, and Facebook. You can submit detection requests for different platforms for the same group of numbers in the same task list, and merge and export them.

The complete operation process of using KK-DATA to filter active WS numbers in the United States

The following are specific steps that can be copied (assuming you already have a KK-DATA account and have recharged sufficient balance):

1. Log in to the console → Enter the “Number Generation” module.
2. Select the country “United States” and generate candidate numbers by state or city (for example, New York 212, 310, etc.), or import a custom CSV. Click “Generate”, it’s free.
3. Enter “Screen Number Task” → click “New Task”.
4. Select the platform “WhatsApp” and check “Activate + Active” for the detection type (the active window can be 7 days/30 days/90 days).
5. Upload the candidate number file just generated (CSV/TXT, one number per line).
6. The system automatically displays the estimated number of items and the cost (billed by item, For specific unit prices, please see the real-time price on the console).
7. Submit the task after confirmation. When the task is completed (usually within a few hours), receive the results via Telegram notification.
8. Export the results in “Task Details”. The fields include: number, activation status (yes/no), active status, gender, age, wsid, etc.
9. Import important numbers into the “Data Deduplication Warehouse” to remove duplicates.
10. Export the final clean list for marketing.

FAQ

**Q: Can active ws numbers in the United States be 100% guaranteed to arrive? ** Answer: No. Even if the number is active, the person may have turned off notifications, changed devices, or blocked you. However, the reach rate of active numbers is much higher than that of ordinary numbers, usually reaching more than 70% (non-standard data, for reference only). Please refer to the actual test.

**Q: How long does it take to get the results after screening? ** Answer: The processing time after task submission depends on the total number of numbers and the current load of the system. Tasks under 1 million items are usually completed within a few hours. You can be notified via Telegram when completed.

**Q: How accurate is the WhatsApp gender/age field? ** Answer: The gender and age fields are based on public data and algorithm speculation and are not official certified information. The accuracy rate is about 60-80% (non-exact value). Recommended as an orientation aid and not to be relied upon entirely.

**Q: Can I only detect “activated” but not “active”? ** Answer: Yes. When submitting the WhatsApp screening task, just select the detection type as “Activate”, and the unit price is lower. If you need to use it for active reach, it is recommended to choose “Activate + Active”.

**Q: Can a US active ws number be used for iMessage or RCS? ** A: An active WhatsApp number may not support iMessage or RCS at the same time. If you need multi-platform coverage, please submit the screening tasks for the corresponding platforms respectively. KK-DATA supports iOS/iMessage and RCS detection.

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Obtaining a high-quality US Active WS Number is the first step in acquiring customers in the private domain of cross-border e-commerce. Using KK-DATA, you can easily complete the entire process from number generation, batch screening to data deduplication, and pay according to the actual detection volume, with no subscription cost.

👉Log in to the console to start screening numbers Two-way contact customer service: https://t.me/kkdata_robot View full document: https://docs.kkdata.cc/