Saving stores the username and password in this browser's localStorage too. Avoid saving on shared devices. Settings do not sync across devices and are lost when browser data is cleared.
Enter the settings provided by your carrier. The profile is generated locally in your browser without sending the entered data to a server.
Saved APNs
iPhone / iPad configuration profile
This tool generates an unsigned configuration profile in your browser. It is not an official carrier file. It configures only APN, authentication and supported IP protocols, excluding Android APN type and MMS settings.
Download in Safari, then review and install it in Settings. If connectivity fails, remove the profile you just added to restore the previous settings.