>Yes, but I’d bet your ISP is required by law to store what IP was given to which customer at any given time for a certain period.
In that sense, it’s just as bad privacy wise,
If the gp you're replying to is talking about CG-NAT[1] (which is common in
India), the privacy leak is not the same.
With CG-NAT, a hundred homes simultaneously share the same public-facing IP address at the same time. That's different from Verizon or Comcast in the USA where each house has a different temporary public ip address rotating from a pool of ip addresses.
If the gp you're replying to is talking about CG-NAT[1] (which is common in India), the privacy leak is not the same.
With CG-NAT, a hundred homes simultaneously share the same public-facing IP address at the same time. That's different from Verizon or Comcast in the USA where each house has a different temporary public ip address rotating from a pool of ip addresses.
[1] https://en.wikipedia.org/wiki/Carrier-grade_NAT