What this means
The IEEE assigned the MA-L block EC55F9 to Hon Hai Precision Ind. 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 EC:55:F9, it is Hon Hai Precision Ind. Co.,Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix EC55F9?
EC55F9 is registered to Hon Hai Precision Ind. 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. Hon Hai Precision Ind. Co.,Ltd.'s block covers 16,777,216 addresses.
What devices use EC55F9?
Any network device with a MAC address starting EC:55:F9 was manufactured by or for Hon Hai Precision Ind. Co.,Ltd..