Who owns MAC prefix 001B3F?

001B3F is registered to ProCurve Networking by HP in the IEEE MA-L registry.

What devices use 001B3F?

Any network device with a MAC address starting 00:1B:3F was manufactured by or for ProCurve Networking by HP.

MA-L · OUI prefix

ProCurve Networking by HP

Any MAC address starting 00:1B:3F is registered to ProCurve Networking by HP in SG.

OUI prefix	001B3F
Vendor	ProCurve Networking by HP
Registry	MA-L (24-bit, large block)
Country	SG
Example MAC	00:1B:3F:00:00:00

What this means

The IEEE assigned the MA-L block 001B3F to ProCurve Networking by HP. 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 00:1B:3F, it is ProCurve Networking by HP hardware.

Other ProCurve Networking by HP prefixes

ProCurve Networking by HP holds 9 registered blocks in total.

0016B9 002347 0024A8 002561 0026F1 B439D6 C09134 F06281

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