MAC Address Lookup

What is a MAC Address Lookup?

Look up hardware vendor and manufacturer details (e.g. Apple, Cisco, Intel, Samsung) by MAC address or 24-bit Organizationally Unique Identifier (OUI) prefix.

Why Use This Tool?

  • Network Security Auditing: Identify unknown connected hardware devices on router client lists or Wireshark packet captures.
  • IT Asset Inventory: Catalog hardware vendors across corporate office network switches.
  • Troubleshooting: Identify physical NIC network card manufacturers.

How to Use

  1. Enter any MAC address (e.g., `00:1A:2B:3C:4D:5E` or `001A2B3C4D5E`).
  2. The tool extracts the first 3 octets (OUI prefix).
  3. View registered Vendor Name, Address, and Country.

Real Working Example

Input:

MAC Address: 00:1A:2B:3C:4D:5E

Output Result:

OUI Prefix: 00:1A:2B | Vendor Manufacturer: Cisco Systems, Inc. | Country: United States

Important Technical Details & Standards

  • IEEE Official OUI Registry: Embedded offline IEEE Organizationally Unique Identifier database.
  • Flexible MAC Format Parsing: Accepts colon (`:`), hyphen (`-`), dot (`.`), or raw hex formats.
  • 100% Local Lookup: Operates locally without sending your MAC address to external API trackers.

Related Networking & Security Tools

Frequently Asked Questions

What is an OUI in a MAC address?

An OUI (Organizationally Unique Identifier) is the first 3 bytes (24 bits) of a MAC address assigned to hardware manufacturers by IEEE.

Does it support different MAC formats (colons, hyphens, dots)?

Yes, formats like 00:11:22:33:44:55, 00-11-22-33-44-55, and 0011.2233.4455 are supported.

Is my MAC address sent to an external server?

No, vendor lookup runs locally using an embedded IEEE database.

Is it free?

Yes, 100% free.

What does a randomized or private MAC address mean?

Modern smartphones use randomized MAC addresses for Wi-Fi privacy, which may not match IEEE physical vendor registries.

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