MAC prefix E8:EF:22
Siemens Numerical Control Ltd., Nanjing
| Vendor | Siemens Numerical Control Ltd., Nanjing |
|---|---|
| Short name | SiemensNumer |
| Prefix | E8:EF:22/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | E8:EF:22:00:00:00 – E8:EF:22:FF:FF:FF |
| Notations | E8:EF:22:00:00:00E8-EF-22-00-00-00e8ef.2200.0000E8EF22000000 |
Frequently asked questions
Which vendor does MAC address E8:EF:22 belong to?
MAC addresses starting with E8:EF:22 are assigned to Siemens Numerical Control Ltd., Nanjing according to the IEEE registry (prefix length 24 bits).
How many addresses does block E8:EF:22 contain?
The block contains 16,777,216 addresses from E8:EF:22:00:00:00 to E8:EF:22:FF:FF:FF.
Is E8:EF:22 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 Siemens Numerical Control Ltd., Nanjing have?
Siemens Numerical Control Ltd., Nanjing holds 2 registered prefixes in total – the full list is on the vendor page.