Who owns MAC prefix 201F3B?

201F3B is registered to Google, Inc. in the IEEE MA-L registry.

What devices use 201F3B?

Any network device with a MAC address starting 20:1F:3B was manufactured by or for Google, Inc..

MA-L · OUI prefix

Google, Inc.

Any MAC address starting 20:1F:3B is registered to Google, Inc. in US.

OUI prefix	201F3B
Vendor	Google, Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	20:1F:3B:00:00:00

What this means

The IEEE assigned the MA-L block 201F3B to Google, 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 20:1F:3B, it is Google, Inc. hardware.

Other Google, Inc. prefixes

Google, Inc. holds 110 registered blocks in total.

001A11 00F620 04006E 04C8B0 088BC8 08B4B1 0CC413 10D9A2 14223B 14C14E 1C53F9 1CF29A all 110 »

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