CheckNumber.AI
Viber Checker
Viber account verification
Account match Live signal Export-ready
View in all products No-code CSV REST API Exportable results
Check Viber Registration & Activity
Verify Viber account presence, then check activity days, last-online time, and internal Viber ID.
3
checkers
CSV + API
bulk workflows
Viber Checker Viber Days Checker Viber Avatar, Age, Gender & Others CheckerNo 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.
CheckNumber's Viber checker tells you whether a phone number is registered on Viber and how recently that account was online, without messaging or storing the number. Upload a CSV of numbers or call the REST API, and every row comes back with a clear registration verdict plus an activity signal, ready to clean lists, match audiences, or route into your CRM.
What CheckNumber detects for Viber
Registration status
Confirms whether the phone number has a registered Viber account (yes or no), so you can filter out unregistered numbers before outreach.
Days since last online
Returns how many days since the account was last active on Viber, so you can prioritise live users over dormant ones.
Bulk verdict
Every number comes back with a clear result, ready to filter and segment.
Viber internal ID (MID)
The activity task can return Viber's internal account identifier (MID) alongside last-online time and active days.
Passive, no contact
Reads registration and activity signals only. The account holder is never messaged, logged in to, or notified.
What You Can Check
Pick the right Viber signal
Choose the exact check you need for Viber. Use upload-based batches or integrate with the same pricing through API.
Viber Days Checker
Detect Viber account activity days and last online time
Account match Live signal Export-ready
View in all products Viber Avatar, Age, Gender & Others Checker
NEWDetect Viber account age, gender and profile information
Account match Live signal Export-ready
View in all products Common Use Case
Improve Viber list quality before outreach
Segment active Viber users for higher-response outreach.
No-code CSV REST API Exportable results
Signal 1
Registration check — confirm in bulk whether each phone number has a registered Viber account.
Signal 2
Activity signal — see how many days since the account was last online, so you can prioritise live users.
Signal 3
Privacy-safe — a passive check that never messages, logs in, or notifies the account holder.
Viber FAQ
Can I check phone numbers against Viber in bulk?
Yes. Upload a CSV of up to hundreds of thousands of numbers or call the REST API, choose the task type you need, then download a result file with a registration verdict for every number. You are billed only for successful checks.
Can I see how active a Viber account is?
Yes. The activity task type returns the number of days since the account was last online, so you can prioritise recently active users over dormant ones.
Does a Viber check message or notify the person?
No. The check is passive and reads registration and activity signals only. Nothing is sent to the number, and the account owner is never contacted or notified.
Is there a free trial?
Yes. New accounts receive 1,000 free checks on signup with no credit card, and every check is pay-as-you-go with no monthly fee, and the credits you top up never expire.
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10%
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