What this means
The IEEE assigned the MA-L block 00271D to Comba Telecom Systems (China) 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 00:27:1D, it is Comba Telecom Systems (China) Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 00271D?
00271D is registered to Comba Telecom Systems (China) 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. Comba Telecom Systems (China) Ltd.'s block covers 16,777,216 addresses.
What devices use 00271D?
Any network device with a MAC address starting 00:27:1D was manufactured by or for Comba Telecom Systems (China) Ltd..