Hello @Carmen Quijada
Thank you for reaching out to the Microsoft Q&A platform.
If this is a Private IP address and you would like to change it, please follow this link for resetting network interface https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-machines/reset-network-interface#reset-network-interface
You can check this similar question if you are trying to change a public IP address on azure VM https://learn.microsoft.com/en-us/answers/questions/596729/how-to-change-azure-virtual-machine-a-public-ip-ad
If you have any questions, tag me on a comment under this thread, I will be happy to help.
Please don’t forget to Accept Answer and hit Yes for "was this answer helpful" if this helps