MAC address vendor lookup
Retrieve vendor details for any MAC address or OUI.
Read docs Updated 2026-06-17
What is MAC address vendor lookup?
The MAC address vendor lookup service resolves a given MAC address or OUI to its registered vendor and associated metadata.
It supports network diagnostics, asset inventory systems, and security tools that require device manufacturer identification.
What you can build with MAC address vendor lookup
Network asset inventory
Automatically enrich MAC addresses collected from scans with vendor names to build searchable device inventories in internal tools.
Security monitoring alerts
Flag unknown or unexpected vendors in logs from DHCP servers or wireless controllers to detect rogue devices on corporate networks.
IoT onboarding workflows
Validate device manufacturers during provisioning scripts before allowing new hardware onto segmented networks.
Get started with MAC address vendor lookup
- 1Sign up for an account and obtain an API key
- 2Review the endpoint documentation for MAC or OUI lookup
- 3Construct an authenticated HTTPS request with the target address
- 4Parse the JSON response for vendor name, address, and related fields
- 5Handle rate limits and cache results for repeated queries
MAC address vendor lookup: pros & cons
Pros
- +Simple single-purpose endpoint
- +Returns structured vendor details quickly
- +HTTPS-only with API key authentication
- +Useful for both full MACs and standalone OUIs
Cons
- –Requires an API key for all requests
- –Coverage limited to registered public OUIs
- –No offline usage possible
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Frequently asked questions
It returns vendor information and related details for a supplied MAC address or OUI.
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