How to create an Apple ID

If your iPhone is telling you that the maximum number of free ID's is created with this iPhone you might want to create your Apple ID in a different place, on the web for example

1. Go to appleid.apple.com and click Create Your Apple ID.
2. Follow the onscreen steps to provide an email address, create a strong password, and set your device region. The email address that you provide will be your new Apple ID.*
3. Enter a phone number that you can always access.
4. Check the boxes to subscribe to Apple Updates if you'd like. This keeps you up to date on the latest news, software, products, and services from Apple.
5. Click Continue.
6. Follow the onscreen steps to verify your email address and phone number.

See this link for further reference

How to create a new Apple ID - Apple Support