MAC Address Lookup
Looks up the manufacturer (OUI) of a MAC address using the IEEE registration database.

What MAC Address Lookup does
A MAC address lookup tool that identifies the manufacturer (OUI) of a Media Access Control address by querying publicly available IEEE registration databases. Users input a standard twelve-digit hexadecimal MAC address, and the tool processes this unique hardware identifier to reveal which company registered that block of addresses. The output provides technical information regarding the device's potential source or vendor based on industry standards. Network professionals, cybersecurity researchers, and advanced IT students use this function to trace hardware origins and verify device authenticity. The service supports batch processing, vendor searches, and duplicate detection across multiple addresses simultaneously. It also offers reverse lookup capabilities and network analysis features to help users identify devices on their network. The interface is designed for straightforward data entry with clear result presentation, making it accessible for both technical and non-technical users seeking hardware vendor information.
How to use the IT Tools MAC Address Lookup
- 1
Enter a twelve-digit hexadecimal MAC address into the input field
- 2
Click the lookup button to query the IEEE registration database
- 3
View the manufacturer information and vendor details returned in the results panel
- 4
Use batch processing to analyze multiple MAC addresses at once by pasting a list
- 5
Review the vendor search and duplicate detection features for comprehensive analysis
Best for
Network administrators, cybersecurity analysts, and IT students who need to quickly identify the manufacturer of network devices or verify hardware origins using IEEE OUI database lookups.
Limitations
- Results depend on the completeness and currency of the IEEE OUI database
- No unit conversion between different MAC address formats
- Batch processing limits may apply for very large lists of addresses
MAC Address Lookup FAQ
- What information does a MAC address lookup provide?
- The tool reveals the manufacturer (OUI) associated with a MAC address by querying IEEE registration databases, showing which company registered that block of addresses and providing vendor details based on industry standards.
- Can I look up multiple MAC addresses at once?
- Yes, the tool supports batch processing, allowing users to paste a list of MAC addresses for simultaneous analysis with vendor search and duplicate detection features.
- Is the MAC address lookup tool free to use?
- The tool is available as part of the IT Tools directory, offering free access to MAC address lookup functionality without requiring registration or payment.
- How accurate are the manufacturer results from this tool?
- Accuracy depends on the IEEE OUI database's current registration data; the tool queries publicly available databases to provide vendor information based on industry-standard MAC address allocations.
More MAC Address Lookup tools
Similar tools
Based on shared tags