What this means
The IEEE assigned the MA-L block 00073D to Nanjing Postel Telecommunications 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 00:07:3D, it is Nanjing Postel Telecommunications Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 00073D?
00073D is registered to Nanjing Postel Telecommunications 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. Nanjing Postel Telecommunications Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 00073D?
Any network device with a MAC address starting 00:07:3D was manufactured by or for Nanjing Postel Telecommunications Co., Ltd..