Identify the vendor behind any MAC address via OUI lookup.
A MAC (Media Access Control) address is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment. It is a 48-bit address typically represented as six pairs of hexadecimal digits (e.g., 00:1A:2B:3C:4D:5E).
MAC addresses are used to identify devices on a local network (like Ethernet or Wi-Fi). They ensure that data packets are delivered to the correct hardware device within a network.
No. A MAC address is a hardware identifier tied to a device's network interface, while an IP address is a logical identifier assigned to a device for communication over a network. MAC addresses operate at the data link layer (Layer 2) of the OSI model, while IP addresses operate at the network layer (Layer 3).
Yes, MAC addresses are designed to be globally unique. The first half of the address (the OUI, or Organizationally Unique Identifier) is assigned to the manufacturer, and the second half is assigned by the manufacturer to the device.
No. MAC addresses are only used for communication within a local network. Once data leaves the local network, IP addresses are used for routing.