Why would you want to do such a thing ?
It is ALWAYS more useful to HAVE a static IP than not.
When I was with Plusnet I had four static IP addresses and used all of them, with my new ISP I have five !.
You might regret losing it if you intend to keep your landline phone number after December 2025 and migrate to VoIP, as many VoIP devices use static IP.
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