Who owns MAC prefix 00001F?

00001F is registered to Telco Systems, Inc. in the IEEE MA-L registry.

What devices use 00001F?

Any network device with a MAC address starting 00:00:1F was manufactured by or for Telco Systems, Inc..

MA-L · OUI prefix

Telco Systems, Inc.

Any MAC address starting 00:00:1F is registered to Telco Systems, Inc. in US.

OUI prefix	00001F
Vendor	Telco Systems, Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:00:1F:00:00:00

What this means

The IEEE assigned the MA-L block 00001F to Telco Systems, 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 00:00:1F, it is Telco Systems, Inc. hardware.

Other Telco Systems, Inc. prefixes

Telco Systems, Inc. holds 6 registered blocks in total.

000F96 0010CA 00409F 00A012 00C0AB

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