Need Help in Tracing Proxy Source

I recently bought some static proxies from a private provider that were used on sneaker websites from a private seller. He obviously would not share where/how he got the proxies, however, Im pretty sure he just resold others proxies, and he always had very cheap prices even though the quality of his proxies were awesome and the speeds were crazy fast. Would it be possible to trace his provider through the proxy he gave me? If someone can help please lmk, thanks

Have you tried checking through a website like http://whatismyipaddress.com/?

ristoriel said:

Have you tried checking through a website like http://whatismyipaddress.com/?

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yes but that hasnt really gotten me anywhere besides dead ends

use this one

ipinfo.io

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To check your ISP.

Hardly you can trace it down.
Once I developed this kind of platform for reselling residential proxies in bulk.
Ofc, we resold it with changed logins\passwords schemes.

plenty of ip tracers online, just google ip trace