Who owns MAC prefix 00119B?

00119B is registered to Telesynergy Research Inc. in the IEEE MA-L registry.

What devices use 00119B?

Any network device with a MAC address starting 00:11:9B was manufactured by or for Telesynergy Research Inc..

MA-L · OUI prefix

Telesynergy Research Inc.

Any MAC address starting 00:11:9B is registered to Telesynergy Research Inc. in TW.

OUI prefix	00119B
Vendor	Telesynergy Research Inc.
Registry	MA-L (24-bit, large block)
Country	TW
Example MAC	00:11:9B:00:00:00

What this means

The IEEE assigned the MA-L block 00119B to Telesynergy Research Inc.. 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 00:11:9B, it is Telesynergy Research Inc. hardware.

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