Dead numbers, VoIP lines, and disconnected phones waste your time and hurt your SMS deliverability. DialCheck tells you exactly what's on your list — in seconds.
Enter a single number or upload a CSV / Excel file of up to 50 numbers free.
Each number is checked for validity, line type, carrier, and risk signals.
Export only the call-ready numbers and start your campaign with confidence.
We use this to track your free usage across sessions. Up to 50 checks free — no card needed.