. This a green frame and I'm trying to figure out what it is.
I've never found any rhyme or reason to the numbers on BMX frames. In my experience, you need to know the brand as well as the serial and then contact said brand.
It looks pretty low end from the above photo with the upwards brake mounts on the seatstay and what looks to be an American BB? If I had to guess, it came from a low end complete some time in the past 5-10 years. It is very hard to tell anything from the picture above and age is quite hard to guess with BMX frames.