Upload your list
Import CSV or TXT files with phone number data, then confirm the task settings before processing.
Verify Viber account presence in bulk.
Price (per 10,000 numbers) $0.5 USD
Upload lists to detect which numbers are registered on Viber for targeted messaging campaigns. Our Viber Checker enables you to reach users on this global communication platform.
Verify Viber account presence in bulk.
Price (per 10,000 numbers) $0.5 USD
Upload lists to detect which numbers are registered on Viber for targeted messaging campaigns. Our Viber Checker enables you to reach users on this global communication platform.
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.
Detection signals
Viber's user base skews heavily toward Eastern Europe, the CIS region, and parts of the Middle East, so a registered result is more useful for judging reach in those specific markets than as a universal signal. Viber Checker reads that registration status without messaging the number or logging in to any account.
Confirms whether the phone number is registered on Viber (yes or no), so you can filter out unregistered numbers before outreach.
Given Viber's concentrated adoption in Eastern Europe, the CIS, and the Middle East, a registered result works best for gauging whether the channel is viable in those particular markets.
Reads registration signals only. The account holder is never messaged, logged in to, or notified.
Workflow
Use Viber Checker as part of a repeatable list-cleaning workflow before outreach, CRM imports, or audience segmentation.
Import CSV or TXT files with phone number data, then confirm the task settings before processing.
NumberChecker.AI processes the file in bulk and returns structured status signals for each row.
Download results and route clean, matched, unmatched, or review-needed rows into your next workflow.
Outputs
Use cases
Remove unsupported or low-confidence records before campaigns or imports.
Create groups based on platform, email, phone, or account-related signals.
Send uncertain or high-value records into a separate internal review queue.
Related checks
Explore checks that teams often run before or after this product.
Validate numbering format, line type, and reachability signals before platform-specific checks
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Identify high-value phone users via big-data signals for better targeting and prioritization
Filter out numbers recently active on e-commerce platforms and reach high-converting users with real purchasing habits.
FAQ
Yes. Upload a CSV of up to hundreds of thousands of numbers or call the REST API, then download a result file with a registered or not-registered verdict for every number. You are billed only for successful checks.
No. The check is passive and reads registration signals only. Nothing is sent to the number, and the account holder is never contacted or notified.
Viber Checker only confirms registration (yes/no). For account age and last-online activity, use Viber Days Checker.
Yes. New accounts receive free checks on signup, and every check is pay-as-you-go with no monthly fee.
Compare pricing, review API options, or create an account to upload your first production list.