MAC prefix 44:C3:9B
Ooo Rubezh Npo
| Vendor | Ooo Rubezh Npo |
|---|---|
| Short name | OooRubezhNpo |
| Prefix | 44:C3:9B/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 44:C3:9B:00:00:00 – 44:C3:9B:FF:FF:FF |
| Notations | 44:C3:9B:00:00:0044-C3-9B-00-00-0044c3.9b00.000044C39B000000 |
Frequently asked questions
Which vendor does MAC address 44:C3:9B belong to?
MAC addresses starting with 44:C3:9B are assigned to Ooo Rubezh Npo according to the IEEE registry (prefix length 24 bits).
How many addresses does block 44:C3:9B contain?
The block contains 16,777,216 addresses from 44:C3:9B:00:00:00 to 44:C3:9B:FF:FF:FF.
Is 44:C3:9B 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.