Nokia leaped into first place among Windows Phone resellers last quarter.
It sold 900,000 of them.
Earlier this year, Nokia said it had shipped 1 million Windows Phones in the last quarter of 2011.
Nokia just introduced its first Windows Phones, the Lumia series, in the UK in November, and did not begin selling them in the U.S. until this month. Nokia is expected to introduce some higher-end Windows Phone models later this year, and will probably have some big announcements at next week's Mobile World Congress show in Barcelona.
But it's still got a long way to go to reach Morgan Stanley's estimate of 37 million phones sold this year.
More From Business Insider