The streaming giant said 82 million households around the world tuned into the show in its first 28 days online, surpassing the firm's own projections.
The show hit the number one spot in 83 countries, including the US, UK, India, France and Brazil.
Bridgerton star Phoebe Dynevor described the news as "utterly insane".
"I'm SO proud of the incredible team behind this show! And thank you guys for loving it," the 25-year-old actor, who played Daphne Bridgerton, wrote on Instagram.