Upload your list
Import CSV or TXT files with phone number data, then confirm the task settings before processing.
Verify HTX exchange account presence in bulk.
Price (per 10,000 numbers)
$3.5 USD
Upload lists to validate which phone numbers are registered on HTX (formerly Huobi) for crypto-related campaigns. Reach registered cryptocurrency traders and investors.
Verify HTX exchange account presence in bulk.
Price (per 10,000 numbers)
$3.5 USD
Upload lists to validate which phone numbers are registered on HTX (formerly Huobi) for crypto-related campaigns. Reach registered cryptocurrency traders and investors.
Detection signals
HTX Checker confirms whether a phone number is registered on HTX, without messaging or storing the number. Every row comes back with a clear registered or not-registered verdict, ready to clean lists, match audiences, or route into your CRM.
Confirms whether the phone number is registered on HTX (yes or no), so you can filter out unregistered numbers before outreach.
Every number comes back with a clear registered or not-registered result, ready to filter and segment.
Reads registration signals only. The account holder is never messaged, logged in to, or notified.
Workflow
Use HTX 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.
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.
HTX is checked by phone number here. If you need to check by email address instead, use HTX Email 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.
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