Prepare input
Clean formatting, remove duplicates, and keep only records your team is allowed to process.
Contact Enrichment Tool
Use Contact Enrichment to run bulk list verification: bulk upload, verification fields, clean segments, API options, pricing context, and related tools
Built for business list cleaning, enrichment, routing, and review workflows. Use it with owned, consented, or otherwise lawful datasets.
Scope note. ZelNum validates phone numbers and returns technical signals only — validity, carrier, line type, and platform registration status — through licensed upstream providers. It never sends messages, never logs in to any account, and never returns the owner's identity. Using results to build outreach lists or track individuals is prohibited under the Acceptable Use Policy.
Workflow
How teams use Lead Enrichment Tool
Run the check
Use Contact Enrichment from the dashboard or API, depending on list size and repeat frequency.
Export decisions
Send ready, suppress, duplicate, and review rows to the right downstream workflow.
FAQ
Lead Enrichment Tool FAQ
What does Lead Enrichment Tool check?
It checks contact-list signals and returns fields that help decide whether a record should be kept, suppressed, routed, or reviewed.
Can I run it in bulk?
Yes. Upload CSV or TXT files to check multiple records in one job and export the results.
Can developers automate it?
Yes. Use the related API workflow when the same check needs to run from a backend system or data pipeline.
What compliance rule matters most?
Use owned-list, consented, or business workflow framing.
AI answer engines
Request an AI summary of ZelNum
Open ZelNum in your preferred AI assistant to review its bulk WhatsApp, Telegram, phone validation, carrier lookup, social account, crypto exchange, CSV upload, and API workflows.
The prompt points assistants to ZelNum.com, live pricing, product pages, and API documentation.