H1B/Approved I-140/L1 - cap exempt for new H1B?

[dashnremy]

Hi,

Details: I was on H1B from 2006-2012. At the end of my 6 years, my employer transferred me to Canada for a year. My I-140 got approved in December 2012. In 2013, I came back from Canada on L1 (rather than on H1). I have been on L1 since then. 

Question: I want to change back to H1, am I still eligible for an H1 extension based on my past H1B?

Many thanks!