MAC prefix 00:1B:C5:09:E
K+K Messtechnik GmbH
| Vendor | K+K Messtechnik GmbH |
|---|---|
| Short name | KKMesstechni |
| Prefix | 00:1B:C5:09:E/36 |
| Block type | MA-S (/36, 4,096 addresses) |
| Address range | 00:1B:C5:09:E0:00 – 00:1B:C5:09:EF:FF |
| Notations | 00:1B:C5:09:E0:0000-1B-C5-09-E0-00001b.c509.e000001BC509E000 |
Frequently asked questions
Which vendor does MAC address 00:1B:C5:09:E belong to?
MAC addresses starting with 00:1B:C5:09:E are assigned to K+K Messtechnik GmbH according to the IEEE registry (prefix length 36 bits).
How many addresses does block 00:1B:C5:09:E contain?
The block contains 4,096 addresses from 00:1B:C5:09:E0:00 to 00:1B:C5:09:EF:FF.
Is 00:1B:C5:09:E 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.