A Truthset study for CIMM and Go Addressable, published 2025-11-05, found that IP-to-postal linkages were accurate 13% of the time on average. IP-to-email linkages were accurate 16% of the time. Six data providers agreed on few of the same linkages.
Truthset recommended in a study for CIMM and Go Addressable, published 2025-11-05, that buyers test how IP data accuracy changes campaign results. It also recommended sources with deterministic IP links, such as MVPDs.
From Truthset, for CIMM and Go Addressable, CIMM
Keep in mind: Aimed at buyers, not publishers. The report marks its results as preliminary.
Observations and reported facts, newest first.
In a study for CIMM and Go Addressable published 2025-11-05, Truthset found that IPv6 made up 15% of data provider IP files. Google put US IPv6 adoption at 54%.
From Truthset, for CIMM and Go Addressable, CIMM
Keep in mind: Study data from 2024-12-01 to 2025-02-28. The report marks its results as preliminary.
In a study for CIMM and Go Addressable published 2025-11-05, Truthset found that data providers linked 3.2 IP addresses to each postal address on average. ISP records showed 1.2.
From Truthset, for CIMM and Go Addressable, CIMM
Keep in mind: Study data from 2024-12-01 to 2025-02-28. The report marks its results as preliminary.
In a study for CIMM and Go Addressable published 2025-11-05, Truthset found that six data providers agreed on only 6.4% of IP-to-postal linkages and 2.8% of IP-to-email linkages.
From Truthset, for CIMM and Go Addressable, CIMM
Keep in mind: Study data from 2024-12-01 to 2025-02-28. The report marks its results as preliminary.
In a study for CIMM and Go Addressable published 2025-11-05, Truthset found that IP-to-email linkages were accurate 16% of the time on average. The best of six data providers scored 30% and the worst scored 7%.
From Truthset, for CIMM and Go Addressable, CIMM
Keep in mind: Study data from 2024-12-01 to 2025-02-28. The report marks its results as preliminary.
On 2025-11-05, CIMM and Go Addressable published a Truthset study of IP address data from six data providers. It found that IP-to-postal linkages were accurate 13% of the time on average.
From Truthset, for CIMM and Go Addressable, CIMM
Keep in mind: Study data from 2024-12-01 to 2025-02-28. The report marks its results as preliminary.
Add https://mcp.beeler.tech/mcp to Claude or ChatGPT as a custom connector, once. Then ask: “How reliable is the IP address as an identity signal for targeting and measurement?” It answers from these statements, with every source named and linked.
Every statement links to its source and says when Beeler.Tech has a tie to it, such as an In View client. Community observations are anonymous; here is how we use them. Corrections are made in public.
