Audience Extension
Reach audiences beyond your current data footprint
Why Matchbook for audience extension?
Unlike traditional audience extension solutions that rely on probabilistic data, Matchbook uses deterministic, observation-based geolocation mobile data to create verified connections between identifiers. By matching input signals to real-world device data, Matchbook ensures your extended audience is relevant and engaged.
By matching input signals to real-world device data, Matchbook ensures your extended audience is relevant and engaged.
- Expand audience reach without sacrificing accuracy
- Discover new devices and users connected to your known data signals
- Improve targeting efficiency by filtering out proxies and unreliable IPs
- Customize match parameters to meet your campaign goals
What you can do with Matchbook
MAID Enrichment via IP Matching
Start with a known IP address and discover all connected mobile devices. Extend your reach to additional household devices and ensure your message is seen across screens.
IP Enrichment via MAID Matching
Provide Matchbook with a MAID and identify its associated IP addresses. Gain a clearer view of your audience's online activity, whether on mobile, desktop, or CTV.
Physical to IP Enrichment
Start with a physical location—like a store, event venue, or neighborhood—and identify IP addresses active in that area. Use these insights to reach relevant audiences based on real-world behavior.
Omnichannel Audience Activation
Activate your extended audience across multiple platforms. Matchbook’s accurate device connections ensure consistent messaging, whether through CTV, mobile, desktop, or DOOH.
Matching Pathways

IP address to MAID
Reach known audiences on mobile after desktop or CTV engagement, then serve ads on other household devices beyond that original touchpoint

Postcode, H3, Geohash to Corporate IPs
Expand into geographies relevant to your audience footprint

HEM IP address
Connect CRM, loyalty, and email audiences to IP-based devices for addressable reach—or match devices to hashed emails for onboarding into platforms like Meta.