LINE has strong adoption in Japan, Thailand, Taiwan and other Asian markets. Campaigns targeting these regions should validate LINE number lists first so budget is not spent on records that cannot be reached.
First, separate lists by country. LINE adoption differs significantly by market, and mixing dialing ranges can distort the overall match rate and make source quality difficult to assess.
Second, separate registration and activity checks. Higher-value campaigns may justify both registration and activity screening, while a general campaign may use registration alone to control cost.
Third, add gender and age labels only where they serve a legitimate segmentation purpose. Applying demographic enrichment after registration screening can support more relevant creative and landing pages, but inferred attributes should remain optional and subject to privacy controls.
The Screening Platform supports LINE registration, activity, gender and age checks for teams working across Japan, Korea and Southeast Asia.
