Validate a Dialer List in two minutes
A power dialer is only as productive as the list behind it — every disconnected or wrong-type number is a wasted dial and a hit to rep morale. Validating the list before it loads into the dialer means your team spends its time on connected, callable numbers instead of dead air.
What's hiding in your list
Disconnected and reassigned numbers look identical to live ones in a raw list, so the dialer burns through them before anyone notices.
Landlines and VoIP numbers mixed into a mobile-targeted campaign waste dials and can create compliance exposure.
Skip-traced and aggregated dialer data is especially prone to wrong-party numbers that pass a basic format check but never reach the intended person.
Email and phone — cleaned in one pass
Verify in one pass
Every email checked for deliverability and every phone validated — in a single upload.
Catch what others miss
Typos, catch-all domains, disposable addresses, dead numbers and silent duplicates.
Flat, simple pricing
Feed your dialer only live, valid numbers. No per-credit math, no surprise overage bills.
Clean leads in three steps
No setup, no integrations, no learning curve. Upload a file, download a better one.
Upload your CSV
Drag in any contact list. We auto-detect email, phone, name and company columns.
We verify everything
Every email checked for deliverability, every phone validated, duplicates flagged — with a live quality score.
Download clean leads
Export a verified, deduplicated list your team can actually call and email.
Email and phone, cleaned in a single upload — see exactly how many bad contacts are hiding in your list before you pay a cent.
100 free verifications · no credit card · results in under 2 minutes
Frequently asked
What does dialer-list validation check?
Whether each number is active, its line type (mobile, landline or VoIP), and its carrier — so you load only numbers worth dialing.
Does this help with TCPA-style compliance?
Line-type detection lets you route calls correctly and avoid texting numbers that shouldn't be texted; verification is one input to a compliant calling process.
Can I validate phone and email together?
Yes — BounceBlock validates both in one upload, so the same list is ready for calls and email follow-up.
Stop wasting hours on dead leads.
Upload your list and see how clean it really is — free, in under two minutes.