What this means
The IEEE assigned the MA-L block 487A55 to ALE International. 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 48:7A:55, it is ALE International hardware.
Frequently Asked Questions
Who owns MAC prefix 487A55?
487A55 is registered to ALE International 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. ALE International's block covers 16,777,216 addresses.
What devices use 487A55?
Any network device with a MAC address starting 48:7A:55 was manufactured by or for ALE International.