Our house is about 5 years old and we would like to extend the Pergo to match because it's probably discontinued. I don't know the name, but it looks like a light stained birch or maybe maple and the number on the back is 0018671. It looks very similar to Pergo Everyday Maple.
Since this post, I did get a reply from Pergo. They think I have PO 2300 Light Maple Blocked. You say you have a box of Pergo Birch Blocked. How much is in a box and do you have a photo?