Find direct-dial mobile numbers for every contact - cascading 15+ providers automatically.
Find Verified Phone Numbers with Phone Waterfall Enrichment
Connect with the right prospects with help of verified business phone data. DataKart launches a phone waterfall enrichment feature that enables businesses to identify direct dial and mobile numbers with data from multiple phone providers that are passed through a series of layered verification workflows. This enhances connect rates, reduces invalid numbers, and helps send more targeted outbound campaigns for SDR teams, recruiters, agencies, and sales professionals.
Phone providers in the cascade
Dial mobile numbers returned
Switchboard numbers returned
Per valid result only
How it works
From contact list to direct-dial numbers.
Data that includes names, company domains, LinkedIn profiles, or existing lead databases are uploaded into the system.
What you get - Fields returned per enriched contact.
Every valid phone result returns the number plus type and validation metadata.
Direct-dial number
Phone number
Number type
Mobile / Direct / HQ
Country code
ISO code
Validation status
Active / Invalid
Provider source
Which provider found it
Confidence score
0–100
Who uses Phone Waterfall and why.
DR & Sales Teams
Develop verified outbound calling lists that can be used in prospecting and pipeline development.
Lead Generation Agencies
Enhance the quality of contacts when launching client outreach campaigns.
Recruiters
Find verified professional contact numbers for hiring outreach and candidate engagement.
Start-ups & Founders
Access phone enrichment workflows that can verify large scales of data of any size.
Business Development Teams
Minimize manual prospect research and improve outbound calling efficiency.
phone waterfall enrichment
Phone waterfall enrichment works the same way as email waterfall — querying multiple phone data providers in sequence for each contact, stopping at the first valid direct-dial result. The critical difference from a single-provider approach is coverage: no single phone data provider has complete mobile number coverage across all geographies and industries.
The even more important difference from generic phone enrichment: Datakart filters out switchboard and HQ numbers, returning only direct-dial mobile numbers. A switchboard number is nearly useless for outbound sales. A direct-dial mobile number connects you to the person.
Datakart's Phone Waterfall cascades 15+ providers automatically, validates returned numbers for activity and type, and only charges you for valid direct-dial results.
Integrations
Works with your existing stack.
Export from Datakart and drop into the tools your team already uses.
Clay
HubSpot
Salesforce
n8n
Make
Zapier
Instantly
Smartlead
Any AI agent
FAQ
Common questions.
Related Tools
Complete your enrichment stack.
Phone Waterfall
Same cascade logic for direct-dial mobile numbers - 15+ providers.
Email Personalisation
AI writes a unique cold email per contact using the enriched profile. Next step after finding their email.
Find People
Build the contact list before running Email Waterfall - describe your ICP, get contacts.
Lead Scoring
AI ranks your list by fit and intent — work highest-probability accounts first.
Account Research
Full account intelligence brief — personalise outreach at the account level.
News Research
Company news and trigger events - the final personalisation layer before sending.
Stop calling switchboards. Start reaching people directly.
100 free credits. No credit card. Pay per valid result.