01
Upload your list
Import CSV or TXT files with phone number data, then confirm the task settings before processing.
WhatsApp Days Checker
Track account activity duration and business status
Price (per 10,000 numbers) $1.5 USD
Detect how long WhatsApp accounts have been active and whether they are business accounts. Our WhatsApp Days Checker returns the available last-active time, active days, and Business status for each number. Perfect for understanding account longevity and targeting verified business contacts.
Track account activity duration and business status
Price (per 10,000 numbers) $1.5 USD
Detect how long WhatsApp accounts have been active and whether they are business accounts. Our WhatsApp Days Checker returns the available last-active time, active days, and Business status for each number. Perfect for understanding account longevity and targeting verified business contacts.
No account, number, or SIM required
Every check runs through official platform APIs on our own infrastructure. You never connect, bind, or use your own account, phone number, or SIM card — just upload your list or call the API and get results.
- Activity Duration: Identify how long WhatsApp accounts have been active on the internet for better targeting.
- Business Detection: Automatically detect whether accounts are verified WhatsApp Business accounts.
- Last-Active Time: Retrieve the available last-active time to see how recently each account was online.
- Account Insights: Get comprehensive account information to improve your marketing segmentation and targeting strategies.
Detection signals
What WhatsApp Days Checker detects
WhatsApp Days Checker returns registration status, available activity time and days, and Business status without messaging or storing the number. Every row comes back with structured activity signals ready for CRM enrichment or lead scoring.
Activity duration
Returns how many days the WhatsApp account has been active, helping you gauge how established the user is.
WhatsApp Business flag
Flags whether the number is a WhatsApp Business account, so you can separate businesses from personal users.
Business status
Returns the available Business flag together with activity signals, so rows can be segmented without assuming a retired signature field.
Workflow
How WhatsApp Days Checker works
Use WhatsApp Days Checker as part of a repeatable list-cleaning workflow before outreach, CRM imports, or audience segmentation.
02
Run the check
NumberChecker.AI processes the file in bulk and returns structured status signals for each row.
03
Export segments
Download results and route clean, matched, unmatched, or review-needed rows into your next workflow.
Outputs
What you can review after the check
number
activated
activetime
activedays
business
Use cases
Where teams use WhatsApp Days Checker
List cleaning
Remove unsupported or low-confidence records before campaigns or imports.
Audience segmentation
Create groups based on platform, email, phone, or account-related signals.
Review workflows
Send uncertain or high-value records into a separate internal review queue.
Related checks
Pair WhatsApp Days Checker with related products
Explore checks that teams often run before or after this product.
FAQ
WhatsApp Days Checker questions
Can I check phone numbers against WhatsApp Days in bulk? +
Yes. Upload a CSV of up to hundreds of thousands of numbers or call the REST API, then download a result file with activetime, activedays, and business fields where returned.
Does the check message or notify the person? +
No. The check is passive and reads activity and profile signals only. Nothing is sent to the number, and the account holder is never contacted or notified.
What's the difference between this and WhatsApp Checker or Age & Gender Checker? +
WhatsApp Days Checker focuses on activity duration and Business status. For a simple registered/not-registered result, use WhatsApp Checker; for age, gender, and avatar fields, use WhatsApp Age & Gender Checker.
What does N/A mean for activity days? +
N/A appears when the number is not registered on WhatsApp or the activity signal isn't available for that account.
Ready to run WhatsApp Days Checker at scale?
Compare pricing, review API options, or create an account to upload your first production list.
