MAC prefix B8:BB:11

Espressif Systems (Singapore) Pte. Ltd

VendorEspressif Systems (Singapore) Pte. Ltd
Short nameEspressifPte
PrefixB8:BB:11/24
Block typeMA-L (/24, 16,777,216 addresses)
Address rangeB8:BB:11:00:00:00 – B8:BB:11:FF:FF:FF
NotationsB8:BB:11:00:00:00
B8-BB-11-00-00-00
b8bb.1100.0000
B8BB11000000

Frequently asked questions

Which vendor does MAC address B8:BB:11 belong to?

MAC addresses starting with B8:BB:11 are assigned to Espressif Systems (Singapore) Pte. Ltd according to the IEEE registry (prefix length 24 bits).

How many addresses does block B8:BB:11 contain?

The block contains 16,777,216 addresses from B8:BB:11:00:00:00 to B8:BB:11:FF:FF:FF.

Is B8:BB:11 a unicast or multicast address?

The least significant bit of the first byte is 0 – it is a unicast address. The U/L bit is 0, so the address is globally unique (universally administered).

How do I find the MAC address of my device?

On Linux use ip link, on Windows getmac /v or ipconfig /all, on macOS ifconfig. Note: phones and recent operating systems often use random, locally administered addresses on Wi-Fi.

Which other MAC prefixes does Espressif Systems (Singapore) Pte. Ltd have?

Espressif Systems (Singapore) Pte. Ltd holds 21 registered prefixes in total – the full list is on the vendor page.

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