What this means
The IEEE assigned the MA-L block AC7713 to Honeywell Safety Products (Shanghai) 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 AC:77:13, it is Honeywell Safety Products (Shanghai) Co.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix AC7713?
AC7713 is registered to Honeywell Safety Products (Shanghai) 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. Honeywell Safety Products (Shanghai) Co.,Ltd's block covers 16,777,216 addresses.
What devices use AC7713?
Any network device with a MAC address starting AC:77:13 was manufactured by or for Honeywell Safety Products (Shanghai) Co.,Ltd.