https://www.vice.com/en_us/article/qj8dj5/facebook-phone-number-data-breach-telegram-bot

An online tool lets customers pay to unmask the phone numbers of Facebook users that liked a specific Page, and the underlying dataset appears to be separate from the 500 million account database that made headlines this week, signifying another data breach or large scale scraping of Facebook users' data, Motherboard has found.

Motherboard verified the tool, which comes in the form of a bot on the social network and messaging platform Telegram, outputs accurate phone numbers of Facebook users that aren't included in the dataset of 500 million users. The data also appears to be different to another Telegram bot outputting Facebook phone numbers that Motherboard first reported on in January.