How come some DHCP clients are identified and others arent?

I put dd wrt on my router. I'm looking at my dhcp client list. Some of them are identified and others are just random symbols.

Host name: Natalies-iPhone
Host name: android-4b7a1e6beac78127

Why is the iphone recognized but not the android?
Its my phone so its not like its some neighbor stealing my Wi-Fi.

According to the DHCP standard, one of the fields passed between the DHCP server and the client is the client's hostname. This hostname is what the client system identifies for itself. For instance, when you first setup your IPhone, either it gave you the option to setup your own hostname or it took your first name and used it as part of the system naming process. Android doesn't give you that option and auto generates a random host name.

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