Who owns MAC prefix A0231B?

A0231B is registered to TeleComp R&D Corp. in the IEEE MA-L registry.

What devices use A0231B?

Any network device with a MAC address starting A0:23:1B was manufactured by or for TeleComp R&D Corp..

MA-L · OUI prefix

TeleComp R&D Corp.

Any MAC address starting A0:23:1B is registered to TeleComp R&D Corp. in US.

OUI prefix	A0231B
Vendor	TeleComp R&D Corp.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	A0:23:1B:00:00:00

What this means

The IEEE assigned the MA-L block A0231B to TeleComp R&D Corp.. 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 A0:23:1B, it is TeleComp R&D Corp. hardware.

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