MAC prefix 40:D8:55:1D:3
Kaluga Teletypes Manufacturing Plant
| Vendor | Kaluga Teletypes Manufacturing Plant |
|---|---|
| Short name | KalugaTelety |
| Prefix | 40:D8:55:1D:3/36 |
| Block type | MA-S (/36, 4,096 addresses) |
| Address range | 40:D8:55:1D:30:00 – 40:D8:55:1D:3F:FF |
| Notations | 40:D8:55:1D:30:0040-D8-55-1D-30-0040d8.551d.300040D8551D3000 |
Frequently asked questions
Which vendor does MAC address 40:D8:55:1D:3 belong to?
MAC addresses starting with 40:D8:55:1D:3 are assigned to Kaluga Teletypes Manufacturing Plant according to the IEEE registry (prefix length 36 bits).
How many addresses does block 40:D8:55:1D:3 contain?
The block contains 4,096 addresses from 40:D8:55:1D:30:00 to 40:D8:55:1D:3F:FF.
Is 40:D8:55:1D:3 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.