MAC Address Lookup

What is MAC Address Lookup?

MAC address lookup identifies the manufacturer or vendor of a network device from its MAC address. MAC addresses contain an OUI (Organizationally Unique Identifier) that identifies the manufacturer. Looking up MAC addresses helps identify device types, troubleshoot networks, and manage device inventories.

Why Lookup MAC Addresses?

MAC address lookup provides valuable network information:

• Device Identification: Identify device manufacturer from MAC address
• Network Troubleshooting: Troubleshoot network issues by identifying devices
• Security Auditing: Audit network devices and identify unknown devices
• Inventory Management: Manage device inventories and track network devices
• Format Validation: Validate MAC address format and structure

Common Use Cases

Device Manufacturer Identification

Identify device manufacturer from MAC address. Know which devices are on your network and their manufacturers.

Network Troubleshooting

Troubleshoot network issues by identifying devices. Understand which devices are causing problems or connecting to your network.

Security Auditing

Audit network devices for security. Identify unknown or unauthorized devices on your network.

Device Inventory Management

Manage device inventories and track network devices. Keep track of devices and their manufacturers.

MAC Address Validation

Validate MAC address format and structure. Ensure MAC addresses are properly formatted.

MAC Address Structure

MAC addresses contain:

• OUI (Organizationally Unique Identifier): First 3 bytes identify manufacturer
• Device Identifier: Last 3 bytes identify specific device
• Format: XX:XX:XX:XX:XX:XX (6 bytes, 48 bits)

MAC Address Lookup Features

Our tool provides:

• Vendor Lookup: Identifies manufacturer from MAC address
• Format Validation: Validates MAC address format
• Multiple Formats: Supports colon, hyphen, and dot formats
• OUI Information: Displays OUI details
• Format Normalization: Normalizes MAC address format

MAC Address Lookup Best Practices

• Format Support: Tool handles various MAC address formats
• OUI Database: Uses current OUI database for accurate lookups
• Validation: Validates MAC address format before lookup
• Use Cases: Use lookup for network management and troubleshooting

Privacy and Security

Our MAC Address Lookup processes all MAC addresses entirely in your browser. No MAC addresses are sent to our servers, ensuring complete privacy.

Related Tools

If you need other network or address tools, check out:

• MAC Address Generator: Generate random MAC addresses
• IP Address Tools: Work with IP addresses
• Network Tools: Other network utilities