The 600+ million records are not just unique records since phone numbers are not necessarily primary keys. One of the challenges of Contactive is about indexing and building relationships between phone numbers, emails and social identities. Every time we collect new data, it is stored into the directory and indexed in realtime.
It is also important to know that we only index public data and also we provide an opt-out option if someone wants to be unlisted.
It is also important to know that we only index public data and also we provide an opt-out option if someone wants to be unlisted.