MAC prefix 70:B3:D5:81:4
Ingenieurbuero SOMTRONIK
| Vendor | Ingenieurbuero SOMTRONIK |
|---|---|
| Short name | Ingenieurbue |
| Prefix | 70:B3:D5:81:4/36 |
| Block type | MA-S (/36, 4,096 addresses) |
| Address range | 70:B3:D5:81:40:00 – 70:B3:D5:81:4F:FF |
| Notations | 70:B3:D5:81:40:0070-B3-D5-81-40-0070b3.d581.400070B3D5814000 |
Frequently asked questions
Which vendor does MAC address 70:B3:D5:81:4 belong to?
MAC addresses starting with 70:B3:D5:81:4 are assigned to Ingenieurbuero SOMTRONIK according to the IEEE registry (prefix length 36 bits).
How many addresses does block 70:B3:D5:81:4 contain?
The block contains 4,096 addresses from 70:B3:D5:81:40:00 to 70:B3:D5:81:4F:FF.
Is 70:B3:D5:81:4 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.