I have the H815, it says the network code is "SEA"?

Okay so I want to root my phone but I checked on imeidata what H815 variant it was and under Network Code it says SEA. So what exactly is that? I googled it but it didn't really come up with anything related to the phone.

Also, is this variant even rootable? I hope so, I want the cool stuff. D:

It also says SW Version : H81510B_00, carrier says ARROW. If any of this is relevant I have no clue.