What this means
The IEEE assigned the MA-L block 1C20DB to HUAWEI TECHNOLOGIES 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 1C:20:DB, it is HUAWEI TECHNOLOGIES CO.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 1C20DB?
1C20DB is registered to HUAWEI TECHNOLOGIES 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 TECHNOLOGIES CO.,LTD's block covers 16,777,216 addresses.
What devices use 1C20DB?
Any network device with a MAC address starting 1C:20:DB was manufactured by or for HUAWEI TECHNOLOGIES CO.,LTD.