MAC prefix 00:1B:C5:00:1
OpenRB.com, Direct SIA
| Vendor | OpenRB.com, Direct SIA |
|---|---|
| Short name | OpenRBcomDir |
| Prefix | 00:1B:C5:00:1/36 |
| Block type | MA-S (/36, 4,096 addresses) |
| Address range | 00:1B:C5:00:10:00 – 00:1B:C5:00:1F:FF |
| Notations | 00:1B:C5:00:10:0000-1B-C5-00-10-00001b.c500.1000001BC5001000 |
Frequently asked questions
Which vendor does MAC address 00:1B:C5:00:1 belong to?
MAC addresses starting with 00:1B:C5:00:1 are assigned to OpenRB.com, Direct SIA according to the IEEE registry (prefix length 36 bits).
How many addresses does block 00:1B:C5:00:1 contain?
The block contains 4,096 addresses from 00:1B:C5:00:10:00 to 00:1B:C5:00:1F:FF.
Is 00:1B:C5:00:1 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.