Guides

Practical checklists for evaluating a phone data vendor, from coverage maths to the lawful basis you must supply yourself.

Buying guide

How to evaluate a phone data vendor before you pay

Four checks that separate a maintained catalog from a resold import, in the order you should run them.

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Compliance

Licensing phone data: compliance basics

General orientation on lawful basis, data minimisation and record keeping when you license a number dataset.

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