What this means
The IEEE assigned the MA-L block 00A044 to NTT IT CO., 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 00:A0:44, it is NTT IT CO., LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix 00A044?
00A044 is registered to NTT IT CO., LTD. in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. NTT IT CO., LTD.'s block covers 16,777,216 addresses.
What devices use 00A044?
Any network device with a MAC address starting 00:A0:44 was manufactured by or for NTT IT CO., LTD..