Login into League of Legends. Hover over your profile icon (do not click it!), and you will get a pop-up that will show your account name with its tagline. EUW, for example, is the Europe West server.

COD Mobile just requires 4 GB Ram to play. If your phone is capable to give 2GB Free Ram and your Internet speed is quite stable then you can play COD Mobile.

Unfortunately, you cannot play COD Mobile on a 1GB RAM device. For playing these online games, the minimum requirement of specifications necessary is 2 GB RAM.