A direct dial is a phone number that reaches a specific person rather than a company switchboard — a desk line that bypasses reception, or more usefully a mobile. Published benchmarks put connect rates on verified mobile direct dials at 18–22% against 8–12% on generic data.
The difference between a switchboard number and a direct dial is the difference between a gatekeeper and a conversation, and it is the largest single lever on connect rate available to an outbound team. It is also the most expensive field to source accurately, which is why enrichment pricing is usually quoted per phone number rather than per record.
Mobile numbers outperform desk lines by enough to be worth requesting specifically, and the gap widened permanently with distributed work — a desk line reaches a desk nobody is sitting at.
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