iPhone Pro Max model number?

Hi, I want to purchase an iPhone Pro Max 256 GB from Dubai but since I will be moving to Pakistan soon, I want to get the version that I can use there. I've found a few model numbers but I'm unsure if the phone's are real and of which country the model number belongs to. There are two version given on Sharaf DG's website for iPhone Pro Max 256 GB Space Grey: MWHJ2AA/A and MWH42LL/A. Can someone please tell me which country version's are these? I know the LL one is US/Canada but I'm not sure of the other one. Also, will these two work in Pakistan?