Research firm IDC is out with its latest numbers for Q1 2013 today tracking worldwide smartphone shipments by OS and OEM noting Android and iOS combined accounted for 92.3% of all shipments during the quarter.

IDC noted that Apple and Android¬† shipments combined increased year over year approximately 59.1% with a total of 199.5 million units shipped worldwide during Q1. That’s up from just 125.4 million a year ago. Apple is clearly a large driver of the growth with the report pointing out that iPhone had its “largest ever first quarter volume.” However, despite that, Apple also saw a decline among usage of iOS compared to growth of the industry as a whole, allowing Android to keep its top spot by OS and Samsung to remain number 1 by OEM.

How far is iOS behind Android? According to IDC it accounted for 17.3% of the market in Q1 compared to 75% for Android. Of course this is likely taking shipments (not sales) into account and also doesn’t represent tablet usage that we know iOS continues to dominate.¬†

Microsoft was able to surpass BlackBerry during the quarter to take third place with Windows Phone growing 133.3% year over year and capturing 3% of shipments (thanks to Nokia) compared to 6.3% for BlackBerry OS. IDC does note, however, that BlackBerry ” shipped more than a million units running on its new BB10 platform.”

As always, IDC doesn’t provided data showing shipped vs sold figures.