MAC Address Formatter
Reformat a MAC address between colon, hyphen and Cisco dot notation, and read the bits that tell you what kind of address it is.
Paste it in any shape. Colons, hyphens, dots, spaces or no separator at all.
What the first octet tells you
Two bits in the first octet carry meaning. Bit 0, the least significant, is the individual/group bit: when it is set the frame is multicast rather than addressed to one interface. Bit 1 is the universal/local bit: when it is set the address was assigned locally rather than burned in by a vendor, which is what you see from randomised Wi-Fi MACs and most virtual interfaces.
The first three octets are the OUI, the block assigned to a vendor. Look up the value shown below in the IEEE registry to identify it. This tool does not ship a vendor database, because it would be stale within weeks.