MAC prefix EC:21:E5
| Vendor | Toshiba |
|---|---|
| Prefix | EC:21:E5/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | EC:21:E5:00:00:00 – EC:21:E5:FF:FF:FF |
| Notations | EC:21:E5:00:00:00EC-21-E5-00-00-00ec21.e500.0000EC21E5000000 |
Frequently asked questions
Which vendor does MAC address EC:21:E5 belong to?
MAC addresses starting with EC:21:E5 are assigned to Toshiba according to the IEEE registry (prefix length 24 bits).
How many addresses does block EC:21:E5 contain?
The block contains 16,777,216 addresses from EC:21:E5:00:00:00 to EC:21:E5:FF:FF:FF.
Is EC:21:E5 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 Toshiba have?
Toshiba holds 17 registered prefixes in total – the full list is on the vendor page.