This task can be performed using WhatsApp Number Lookup
WhatsApp Number Checker/Lookup/Filter
Best product for this task

WhatsApp Number Lookup
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CheckNumber.AI provides professional and free WhatsApp number check online service, and provides a professional WhatsApp Number Checker API that can quickly check and detect WhatsApp number in bulk.

What to expect from an ideal product
- Quickly check if any phone number is registered on WhatsApp without adding contacts
- Search multiple numbers at once to find active WhatsApp accounts
- Free online tool that works instantly without downloading software
- Access through an API to integrate WhatsApp number checking into your systems
- Get instant results showing if a number is currently linked to WhatsApp