You can buy simboxes at alibaba[0] which are routers with 12 to 64 simcards. Each simcard has it’s own port which you can use in the config of for instance playwright or scrapy. We use one in production for frontend testing and some scraping.
It works perfect but it’s not cheap and keeping track of simcards which are prepaid or subscriptions in combination with data usage is a bit of work.
Resetting a sim usually gives a new IP and our experience is that blocking an IP by a scraped party is rarely the case because of the shared nature of IPs in the mobile world.