What this means
The IEEE assigned the MA-L block EC3CBB to Huawei Device 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:3C:BB, it is Huawei Device Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix EC3CBB?
EC3CBB is registered to Huawei Device 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. Huawei Device Co., Ltd.'s block covers 16,777,216 addresses.
What devices use EC3CBB?
Any network device with a MAC address starting EC:3C:BB was manufactured by or for Huawei Device Co., Ltd..