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A comment on Facebook users said no to tracking, and now advertisers are panicking. Parent comment

Re:Facebook users said no to tracking, and now advertisers a... by jaywalk on Thursday July 15, 2021 @11:00AM (#27845540)
On Wi-Fi, you're going to have multiple people sharing one IP. On cellular... good luck.
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Re:Facebook users said no to tracking, and now advertisers a... by inesta on Thursday July 15, 2021 @11:03AM (#27845570)
yeah on wifi, but if your home, its only your household. i thought cellular you get a unique ip? or does the cell operator hide your ip. i'm not aware how routing on cellular works.
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Re:Facebook users said no to tracking, and now advertisers a... by umanwizard on Thursday July 15, 2021 @11:23AM (#27845800)
> i thought cellular you get a unique ip?

In the US at least, yes, because most cell providers switched to IPv6 long ago. In other places, carrier-grade NAT is widespread.

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Re:Facebook users said no to tracking, and now advertisers a... by jaywalk on Thursday July 15, 2021 @11:37AM (#27845946)
CG-NAT is widespread in the US as well, but is only used when a site isn't reachable over IPv6.
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Re:Facebook users said no to tracking, and now advertisers a... by umanwizard on Thursday July 15, 2021 @11:49AM (#27846120)
True, but in this particular context the IPs would be unique, as Facebook has been IPv6-native for many years.
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