Today during Apple’s Q1 earnings call with investors, CEO Tim Cook announced that the company sold its billionth iOS device back in November.

Cook noted that the billionth device was a 64GB iPhone 6 Plus and that the company is keeping it at its headquarters in honor of the milestone.

The news comes as Apple beats expectations and reports record smartphone sales today with 74.4 million iPhone units sold during the holiday quarter.

Apple Marketing VP Phil Schiller also joined in on celebrating the milestone:

[tweet https://twitter.com/pschiller/status/560197288048340992]

Stay tuned to our live blog here for all the details from Apple’s earnings call with investors.