You can query the entire database through the legacy interface. BUT, it still restricts the download to max of 50,000 records. You will need to breakup your queries to get what you want

This shows the contact info if you want to get it directly from them. Note, I queried for the entire database:

The query will return 456722204 records.
It's not recommended to view it on screen (1000 records limit).
Please modify your query (or select additional selection from below) or click download.

It's not possible to have direct download if the records are more than 50,000. You could split the query and make multiple downloads within the limits or you could submit the query to batch processing and retrieve it later or you could contact us.
* Estimated file size: 55,892.03 MB.