MAC prefix 44:45:20

EM Microelectronic

VendorEM Microelectronic
Short nameEMMicroelect
Prefix44:45:20/24
Block typeMA-L (/24, 16,777,216 addresses)
Address range44:45:20:00:00:00 – 44:45:20:FF:FF:FF
Notations44:45:20:00:00:00
44-45-20-00-00-00
4445.2000.0000
444520000000

Frequently asked questions

Which vendor does MAC address 44:45:20 belong to?

MAC addresses starting with 44:45:20 are assigned to EM Microelectronic according to the IEEE registry (prefix length 24 bits).

How many addresses does block 44:45:20 contain?

The block contains 16,777,216 addresses from 44:45:20:00:00:00 to 44:45:20:FF:FF:FF.

Is 44:45:20 a unicast or multicast address?

The least significant bit of the first byte is 0 – it is a unicast address. The U/L bit is 0, so the address is globally unique (universally administered).

How do I find the MAC address of my device?

On Linux use ip link, on Windows getmac /v or ipconfig /all, on macOS ifconfig. Note: phones and recent operating systems often use random, locally administered addresses on Wi-Fi.

Which other MAC prefixes does EM Microelectronic have?

EM Microelectronic holds 76 registered prefixes in total – the full list is on the vendor page.

Nearby entries