MAC Address Lookup - OUI Vendor Lookup Tool Free

How to Use the MAC Lookup

1. Enter a MAC address — type or paste a MAC address (e.g., 00:1A:2B:3C:4D:5E)
2. Auto-detection — the tool extracts the OUI (first 6 hex characters) and looks up the vendor
3. View the vendor — the manufacturer name is displayed instantly
4. Check recent lookups — your last few searches are shown for quick reference
5. Try different formats — the tool accepts colons, hyphens, or no separators

Perfect for network administrators, IT support, and security professionals identifying devices on their network.

Features

• Instant vendor lookup — identifies the manufacturer from the OUI (Organizationally Unique Identifier)
• Flexible input — accepts colons (00:1A:2B), hyphens (00-1A-2B), or no separators (001A2B)
• Case insensitive — accepts uppercase or lowercase hex characters
• Built-in database — thousands of OUIs bundled locally (no external API needed)
• Recent lookups — shows your last few searches for quick reference
• No data sent — all processing happens locally, your searches stay private

Use Cases

• Network inventory: Scan your network, collect MAC addresses, and identify which devices belong to which vendor
• Security monitoring: When an unknown device connects to your network, look up its MAC to assess if it’s a known manufacturer
• IT asset management: Identify devices by vendor during hardware audits and asset tagging
• Troubleshooting: Confirm that the device reporting issues is from the expected manufacturer
• Device purchasing: Verify that received hardware has MAC addresses matching the expected vendor range

FAQ

What is a MAC address?

A MAC (Media Access Control) address is a unique 48-bit identifier assigned to network interfaces by the manufacturer. The first 24 bits (6 hex characters) are the OUI — the manufacturer’s unique identifier. The remaining 24 bits are the device-specific serial number.

Can I find the exact device model from a MAC address?

No. The OUI identifies the manufacturer (e.g., Apple, Cisco, Intel) but not the specific device model or type. A MAC starting with Apple’s OUI could be an iPhone, MacBook, or Apple Watch.

Can MAC addresses be changed or spoofed?

Yes. MAC addresses can be changed via software (MAC spoofing). Security professionals should not rely solely on MAC addresses for device authentication. Use additional verification methods for sensitive network access.

Is my MAC address a privacy risk?

On public Wi-Fi networks, your MAC address is visible to the network operator. Modern operating systems use private MAC addresses that change periodically to prevent tracking. Your MAC address reveals only the manufacturer — not your identity or location.

What formats are accepted?

The tool accepts MAC addresses in any common format: 00:1A:2B:3C:4D:5E (colon-separated), 00-1A-2B-3C-4D-5E (hyphen-separated), or 001A2B3C4D5E (no separators).

Tips

• Use the first 6 hex characters alone for a quick vendor lookup without typing the full address
• Cross-reference MAC lookups with DHCP logs to identify unknown devices on your network
• Privacy-focused MAC randomization in iOS 14+ and Android 10+ means devices may show different MACs over time