What this means
The IEEE assigned the MA-L block BCD940 to ASR 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 BC:D9:40, it is ASR Co,.Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix BCD940?
BCD940 is registered to ASR 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. ASR Co,.Ltd.'s block covers 16,777,216 addresses.
What devices use BCD940?
Any network device with a MAC address starting BC:D9:40 was manufactured by or for ASR Co,.Ltd..