Is possible to switch iPhone numbers?

Hello,

This is Lin, we have 2 iPhones, one is mine (12 Pro Max) and the other is my husband (iPhone 12). I would like to know that I want to trade-in iPhone 12 to 14 pro max and that will be used with my number. The old iPhone 12 Pro Max will be going to my husband number. Is possible to switch it? Thanks.

[Edited by Moderator]