What this means
The IEEE assigned the MA-L block 004013 to NTT DATA COMM. SYSTEMS CORP.. 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 00:40:13, it is NTT DATA COMM. SYSTEMS CORP. hardware.
Frequently Asked Questions
Who owns MAC prefix 004013?
004013 is registered to NTT DATA COMM. SYSTEMS CORP. 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 DATA COMM. SYSTEMS CORP.'s block covers 16,777,216 addresses.
What devices use 004013?
Any network device with a MAC address starting 00:40:13 was manufactured by or for NTT DATA COMM. SYSTEMS CORP..