What this means
The IEEE assigned the MA-L block E451A9 to Nanjing Xinlian Electronics 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 E4:51:A9, it is Nanjing Xinlian Electronics Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix E451A9?
E451A9 is registered to Nanjing Xinlian Electronics 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. Nanjing Xinlian Electronics Co., Ltd's block covers 16,777,216 addresses.
What devices use E451A9?
Any network device with a MAC address starting E4:51:A9 was manufactured by or for Nanjing Xinlian Electronics Co., Ltd.