What this means
The IEEE assigned the MA-L block 0025E1 to SHANGHAI SEEYOO ELECTRONIC & TECHNOLOGY 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 00:25:E1, it is SHANGHAI SEEYOO ELECTRONIC & TECHNOLOGY CO., LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 0025E1?
0025E1 is registered to SHANGHAI SEEYOO ELECTRONIC & TECHNOLOGY 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. SHANGHAI SEEYOO ELECTRONIC & TECHNOLOGY CO., LTD's block covers 16,777,216 addresses.
What devices use 0025E1?
Any network device with a MAC address starting 00:25:E1 was manufactured by or for SHANGHAI SEEYOO ELECTRONIC & TECHNOLOGY CO., LTD.