Hi, 

We are planning to develop one IoT product and planning to select T-Mobile as  a 5G and LTE cellular service provider. 

USA is the first geographical area considered for launching. 

For IoT product  antenna customization, anyone can help with the details of   T-Mobile’s 5G NR ( SA & NSA) as well as  LTE frequency  bands deployed in the USA . 

Regards

sg001