MAC prefix 68:91:D0:4
G-TECH Instruments Inc.
| Vendor | G-TECH Instruments Inc. |
|---|---|
| Short name | GTECHInstrum |
| Prefix | 68:91:D0:4/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | 68:91:D0:40:00:00 – 68:91:D0:4F:FF:FF |
| Notations | 68:91:D0:40:00:0068-91-D0-40-00-006891.d040.00006891D0400000 |
Frequently asked questions
Which vendor does MAC address 68:91:D0:4 belong to?
MAC addresses starting with 68:91:D0:4 are assigned to G-TECH Instruments Inc. according to the IEEE registry (prefix length 28 bits).
How many addresses does block 68:91:D0:4 contain?
The block contains 1,048,576 addresses from 68:91:D0:40:00:00 to 68:91:D0:4F:FF:FF.
Is 68:91:D0:4 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.