MAC prefix 34:40:B5
| Vendor | Ibm |
|---|---|
| Prefix | 34:40:B5/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 34:40:B5:00:00:00 – 34:40:B5:FF:FF:FF |
| Notations | 34:40:B5:00:00:0034-40-B5-00-00-003440.b500.00003440B5000000 |
Frequently asked questions
Which vendor does MAC address 34:40:B5 belong to?
MAC addresses starting with 34:40:B5 are assigned to Ibm according to the IEEE registry (prefix length 24 bits).
How many addresses does block 34:40:B5 contain?
The block contains 16,777,216 addresses from 34:40:B5:00:00:00 to 34:40:B5:FF:FF:FF.
Is 34:40:B5 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 Ibm have?
Ibm holds 31 registered prefixes in total – the full list is on the vendor page.