What this means
The IEEE assigned the MA-L block 28BC18 to SourcingOverseas 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 28:BC:18, it is SourcingOverseas Co. Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 28BC18?
28BC18 is registered to SourcingOverseas 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. SourcingOverseas Co. Ltd's block covers 16,777,216 addresses.
What devices use 28BC18?
Any network device with a MAC address starting 28:BC:18 was manufactured by or for SourcingOverseas Co. Ltd.