MAC prefix B4:A5:EF
| Vendor | Sercomm Corporation. |
|---|---|
| Short name | Sercomm |
| Prefix | B4:A5:EF/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | B4:A5:EF:00:00:00 – B4:A5:EF:FF:FF:FF |
| Notations | B4:A5:EF:00:00:00B4-A5-EF-00-00-00b4a5.ef00.0000B4A5EF000000 |
Frequently asked questions
Which vendor does MAC address B4:A5:EF belong to?
MAC addresses starting with B4:A5:EF are assigned to Sercomm Corporation. according to the IEEE registry (prefix length 24 bits).
How many addresses does block B4:A5:EF contain?
The block contains 16,777,216 addresses from B4:A5:EF:00:00:00 to B4:A5:EF:FF:FF:FF.
Is B4:A5:EF 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 Sercomm Corporation. have?
Sercomm Corporation. holds 32 registered prefixes in total – the full list is on the vendor page.