Do iPhones have a separate hidden APN setting for "hotspot" traffic?

DMZ

DMZ

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I've seen some screenshots of the iPhone APN settings screen which have three sections: Internet, MMS and Hotspot. My iPhone (running iOS 9.3.5) only shows the first two. I'm on the UK cellular network Three (on a contract with unlimited internet and 30GB tethering). My device was never network-locked.

Is the "Hotspot" section hidden due to a policy on my SIM card? If I use a program like Apple Configurator 2 to set APN settings via a configuration profile, which APN setting does that affect? There's only one set of input fields on that program that I'm aware of, but more settings on the device.

Google isn't helping me out much. The search results are mainly for if the hotspot option itself is missing, rather than if the hotspot APN settings are missing.
 
...the APN will be the same as your 3G/4G.
I think that conclusion might be premature. Here are some screenshots that someone uploaded of their APN settings page on iOS9:

Enter-Cellular-Data-APN-in-iOS-9-on-iPhone.jpg
Enter-Personal-Hotspot-APN-in-iOS-9-on-iPhone.jpg
 
The research is accumulating. I've found an article which talks about changing the "Tethering APN" to match the "Data APN" on iOS7 by editing and restoring an iPhone backup on a PC. The technique no-longer works, but the takeaway is that there is a "Tethering APN" and sometimes it is hidden.

In addition this page from Virgin Media talks about updating your "Hotspot APN" to fix hotspot functionality in iOS10. To me that indicates that Virgin Media doesn't hide the Hotspot APN setting and Three does.
 
This thread is getting quite a lot of views. If anyone is reading and they can see their Hotspot APN settings, and they're on a UK network, please can you comment and let me know which network/plan you are on. Thanks.

APN settings are in: Settings > Mobile Data > Mobile Data Options > Mobile Data Network. Then scroll right to the bottom and look for "Hotspot APN". Cheers.
 
Yeah this is proving to be too difficult. I'm gonna need to find another solution.

Thanks to everyone who provided info.
 
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