MAC Address Lookup

Identify device manufacturers instantly • Search by 00:1A:2B:3C:4D:5E

Supports all formats: 00:1A:2B, 00-1A-2B, 001A2B

Professional MAC Address Lookup Tool

MAC Address Lookup is a free online tool for network administrators, IT professionals, and security analysts to quickly identify device manufacturers from MAC addresses. Our comprehensive IEEE OUI database contains millions of entries, providing instant and accurate vendor information.

What is a MAC Address?

A MAC (Media Access Control) address is a unique 48-bit identifier assigned to network interface controllers (NICs) for communications on the physical network segment. Every network-capable device—from smartphones and laptops to routers and IoT devices—has a MAC address. The first 24 bits (first 6 hex digits) of a MAC address represent the Organizationally Unique Identifier (OUI), which identifies the manufacturer.

Why Use Our MAC Lookup Tool?

Network Device IdentificationInstantly identify unknown devices connected to your network by their MAC address
Network TroubleshootingDiagnose network issues by identifying problematic devices and their manufacturers
Security & MonitoringDetect unauthorized devices and maintain network security through MAC address tracking
Device InventoryBuild comprehensive device inventories for asset management and procurement

Supported MAC Address Formats

Our MAC address finder accepts all standard MAC address formats:

  • •00:1A:2B:3C:4D:5E(Colon-separated - Most common)
  • •00-1A-2B-3C-4D-5E(Hyphen-separated - Windows format)
  • •001A.2B3C.4D5E(Cisco format - Dot-separated)
  • •001A2B3C4D5E(No separators - Raw format)

Features of Our MAC Lookup Service

  • ✓Instant Results: Real-time MAC address lookup with no delays
  • ✓Comprehensive Database: Updated IEEE OUI registry with 50,000+ entries
  • ✓100% Free: No registration, no limits, no hidden fees
  • ✓Always Updated: Regular updates from IEEE Registration Authority
  • ✓Fast & Reliable: Optimized for speed with 99.9% uptime
  • ✓Privacy Focused: We don't store or log your search queries

Common Use Cases

Network professionals use MAC address lookup tools for various purposes:

  • • Wi-Fi Network Management: Identify devices connecting to wireless networks
  • • Network Security: Detect rogue devices and unauthorized access attempts
  • • DHCP Configuration: Assign static IPs based on MAC addresses
  • • Network Forensics: Investigate security incidents and track device activity
  • • Asset Management: Maintain accurate hardware inventories
  • • Vendor Analysis: Analyze network equipment vendors for procurement decisions

Frequently Asked Questions

What information can I find with a MAC address?

With a MAC address, you can identify the device manufacturer (vendor), the type of network interface, and the assigned OUI block range. Our database provides company names, addresses, and registration details.

Is MAC address lookup legal?

Yes, MAC address lookup is completely legal. The IEEE OUI database is publicly available information. However, using MAC addresses for tracking individuals without consent may violate privacy laws.

How often is your database updated?

Our MAC address database is synchronized with the IEEE Registration Authority regularly. We perform updates to ensure you have access to the latest vendor information.