I’m trying to find rogue or unauthorized devices and I need to spot unexpected vendors based on MAC prefixes.

Identify device vendors by analyzing MAC address prefixes (OUIs) so you can quickly spot unexpected manufacturers on your network. This helps you prioritize investigation of potentially rogue or unauthorized devices and reduce time spent on manual lookups.

This feature supports investigations into rogue or unauthorized devices by mapping observed MAC address prefixes (OUIs) to their likely vendors. When you collect MAC addresses from network logs, scans, or inventory systems, the tool highlights the associated vendor so you can compare it against what you expect to see in a given environment. Unexpected vendors can be surfaced as a signal for further review, such as confirming ownership, validating asset records, or checking whether the device should be connected. This is useful in environments where standard equipment vendors are known and deviations can indicate shadow IT, misconfigured hardware, or malicious implants. By using MAC prefix vendor identification, you can reduce manual research and triage findings faster during audits or incident response. The feature also helps when device hostnames are missing or misleading, since vendor information can provide early context. It can be used during onboarding of new sites to establish a baseline of common vendors and quickly spot anomalies. It is particularly valuable for wireless networks, shared office spaces, labs, or any network with frequent device churn where unauthorized gear can appear. Overall, it improves visibility and speeds up decision-making by turning raw MAC data into vendor-level insights.