How can I reset my new iPhone without it deleting my phone number?

"How can I reset my new iPhone without it deleting my phone number?: Recently got a new iPhone. However, it’s already passed the “hello” screen, so I want to reset the new iPhone so I can transfer my data between iPhones. My question is, how can I factory reset the new iPhone but without deleting my phone number?"

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Use Quick Start:

Keep the eSIM or SIM card inserted. The number will stay on the same. It is the data you are looking to transfer here. So, proceed with the setup, using Quick Start.

• You can factory reset your new iPhone without losing your phone number
• Phone numbers belong to the carrier, not the device
• During reset, choose “Keep Cellular Plan”
• Do not remove the eSIM unless you intend to
• After reset, use Quick Start or iCloud to transfer data safely