Palo Alto Networks - MAC Prefix B40C25 (MA-L)

What this means

The IEEE assigned the MA-L block B40C25 to Palo Alto Networks. 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 B4:0C:25, it is Palo Alto Networks hardware.

Frequently Asked Questions

Who owns MAC prefix B40C25?

B40C25 is registered to Palo Alto Networks in the IEEE MA-L registry.

What does the MA-L registry type mean?

An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Palo Alto Networks's block covers 16,777,216 addresses.

What devices use B40C25?

Any network device with a MAC address starting B4:0C:25 was manufactured by or for Palo Alto Networks.

Other Palo Alto Networks prefixes

Palo Alto Networks holds 40 registered blocks in total.

OUI prefix	B40C25
Vendor	Palo Alto Networks
Registry	MA-L (24-bit, large block)
Block size	16,777,216 addresses
Country	US
Other blocks by this vendor	40 total
Example MAC	B4:0C:25:00:00:00