What this means
The IEEE assigned the MA-M block 4403775 to Norden Communication UK Ltd.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 44:03:77:5, it is Norden Communication UK Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 4403775?
4403775 is registered to Norden Communication UK Ltd. in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Norden Communication UK Ltd.'s block covers 1,048,576 addresses.
What devices use 4403775?
Any network device with a MAC address starting 44:03:77:5 was manufactured by or for Norden Communication UK Ltd..