Hi @Droidkill3r ,
Thank you for reaching out to the community and for your interest in buying a Nest Thermostat.
At the moment it is hard to identify which model is each number because we have numerous serial numbers. Instead, we have the following article: How to tell which Nest thermostat you have: In that article, you will find information about how to identify all thermostats.
I hope the information above was helpful for you.
Feel free to reply if you have any questions.
Best regards,
Derick.
