Who owns MAC prefix 18550F?

18550F is registered to Cisco SPVTG in the IEEE MA-L registry.

What devices use 18550F?

Any network device with a MAC address starting 18:55:0F was manufactured by or for Cisco SPVTG.

MA-L · OUI prefix

Cisco SPVTG

Any MAC address starting 18:55:0F is registered to Cisco SPVTG in US.

OUI prefix	18550F
Vendor	Cisco SPVTG
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	18:55:0F:00:00:00

What this means

The IEEE assigned the MA-L block 18550F to Cisco SPVTG. 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 18:55:0F, it is Cisco SPVTG hardware.

Other Cisco SPVTG prefixes

Cisco SPVTG holds 41 registered blocks in total.

001868 001947 001BD7 001E6B 0021BE 00223A 0022CE 0023BE 00252E 088039 105F49 10EA59 all 41 »

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