MAC prefix 0C:EF:AF:3
Engineering Center ENERGOSERVICE
| Vendor | Engineering Center ENERGOSERVICE |
|---|---|
| Short name | EngineeringC |
| Prefix | 0C:EF:AF:3/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | 0C:EF:AF:30:00:00 – 0C:EF:AF:3F:FF:FF |
| Notations | 0C:EF:AF:30:00:000C-EF-AF-30-00-000cef.af30.00000CEFAF300000 |
Frequently asked questions
Which vendor does MAC address 0C:EF:AF:3 belong to?
MAC addresses starting with 0C:EF:AF:3 are assigned to Engineering Center ENERGOSERVICE according to the IEEE registry (prefix length 28 bits).
How many addresses does block 0C:EF:AF:3 contain?
The block contains 1,048,576 addresses from 0C:EF:AF:30:00:00 to 0C:EF:AF:3F:FF:FF.
Is 0C:EF:AF: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.
Which other MAC prefixes does Engineering Center ENERGOSERVICE have?
Engineering Center ENERGOSERVICE holds 2 registered prefixes in total – the full list is on the vendor page.