Upload your list
Import CSV or TXT files with phone number data, then confirm the task settings before processing.
Identify high-value users across phone number lists in bulk.
Price (per 10,000 numbers)
$7 USD
Upload phone number lists to flag high-value users based on aggregated big-data signals, so teams can prioritize outreach, budget, and review.
Identify high-value users across phone number lists in bulk.
Price (per 10,000 numbers)
$7 USD
Upload phone number lists to flag high-value users based on aggregated big-data signals, so teams can prioritize outreach, budget, and review.
Detection signals
High-value Users Checker detects high-value user signals for phone numbers using big-data analysis, without messaging or storing the number. Every row comes back with a clear yes/no verdict, ready to prioritise outreach toward higher-value contacts.
Returns whether the number matches high-value user signals (yes or no), so you can prioritise outreach and budget.
Every number comes back with a clear result, ready to filter and segment before campaigns.
Reads big-data signals only. The number holder is never messaged, logged in to, or notified.
Workflow
Use High-value Users 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
Detect phone number activity level via big-data analytics to improve SMS delivery and reduce costs
iMessage account verification
RCS/Google Messages account verification
FAQ
Yes. Upload a CSV of phone numbers or call the REST API, then download a result file with a high-value verdict for every number. You are billed only for successful checks.
No. The check is passive and reads big-data signals only. Nothing is sent to the number, and the number holder is never contacted or notified.
The result is based on big-data signals rather than registration on any single platform, giving you a general indicator of a contact's likely value before prioritising outreach.
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.
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