MAC prefix 70:B3:D5:C9:1
| Vendor | Grossenbacher Systeme AG |
|---|---|
| Short name | Grossenbache |
| Prefix | 70:B3:D5:C9:1/36 |
| Block type | MA-S (/36, 4,096 addresses) |
| Address range | 70:B3:D5:C9:10:00 – 70:B3:D5:C9:1F:FF |
| Notations | 70:B3:D5:C9:10:0070-B3-D5-C9-10-0070b3.d5c9.100070B3D5C91000 |
Frequently asked questions
Which vendor does MAC address 70:B3:D5:C9:1 belong to?
MAC addresses starting with 70:B3:D5:C9:1 are assigned to Grossenbacher Systeme AG according to the IEEE registry (prefix length 36 bits).
How many addresses does block 70:B3:D5:C9:1 contain?
The block contains 4,096 addresses from 70:B3:D5:C9:10:00 to 70:B3:D5:C9:1F:FF.
Is 70:B3:D5:C9:1 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 Grossenbacher Systeme AG have?
Grossenbacher Systeme AG holds 30 registered prefixes in total – the full list is on the vendor page.