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MAC Address Lookup

Look up the device vendor and manufacturer from any MAC address OUI — supports all formats (colon, dash, Cisco dot, raw hex). Batch lookup up to 10 MACs.

MAC Address Lookup

Look up device vendor / manufacturer from MAC address

Try a sample

About MAC Addresses

Structure

A MAC address is 48 bits (6 bytes). The first 3 bytes are the OUI (Organizationally Unique Identifier) assigned to the manufacturer. The last 3 bytes are the device-specific NIC identifier.

Formats accepted

  • 00:1A:2B:3C:4D:5E — colon-separated
  • 00-1A-2B-3C-4D-5E — dash-separated
  • 001A.2B3C.4D5E — Cisco dot notation
  • 001A2B3C4D5E — raw hex

Special types

  • Multicast — LSB of first byte is 1
  • Locally Administered — 2nd LSB of first byte is 1 (VMs, VPNs)
  • Broadcast — FF:FF:FF:FF:FF:FF

Privacy note

Modern devices use randomized MAC addresses for Wi-Fi scans. These will show as "Locally Administered" and won't match a real vendor.

Batch Lookup (up to 10 MACs)

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