AWRL6432: How can I determine RTM or not in AWRL6432 chip.

Dear Woong - 

Thanks for the post - this part is currently pre-production and will have X prefix on the part #. 

From product page: https://www.ti.com/product/AWRL6432?keyMatch=AWRL6432#order-quality 

Dear Josh Wyatt

Where can find the "XAWRL6432LQGAMF"?

Is it printed on surface of chip? or I can find this in purchase order document?

Last question, I understand that currently only pre-production chip is available. Am I right?

Best and regards

Choi