What this means
The IEEE assigned the MA-L block E0A509 to Bitmain Technologies Inc. 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 E0:A5:09, it is Bitmain Technologies Inc hardware.
Frequently Asked Questions
Who owns MAC prefix E0A509?
E0A509 is registered to Bitmain Technologies Inc 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. Bitmain Technologies Inc's block covers 16,777,216 addresses.
What devices use E0A509?
Any network device with a MAC address starting E0:A5:09 was manufactured by or for Bitmain Technologies Inc.