MAC prefix EC:22:57
JiangSu NanJing University Electronic Information Technology Co.,Ltd
| Vendor | JiangSu NanJing University Electronic Information Technology Co.,Ltd |
|---|---|
| Short name | JiangSuNanJi |
| Prefix | EC:22:57/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | EC:22:57:00:00:00 – EC:22:57:FF:FF:FF |
| Notations | EC:22:57:00:00:00EC-22-57-00-00-00ec22.5700.0000EC2257000000 |
Frequently asked questions
Which vendor does MAC address EC:22:57 belong to?
MAC addresses starting with EC:22:57 are assigned to JiangSu NanJing University Electronic Information Technology Co.,Ltd according to the IEEE registry (prefix length 24 bits).
How many addresses does block EC:22:57 contain?
The block contains 16,777,216 addresses from EC:22:57:00:00:00 to EC:22:57:FF:FF:FF.
Is EC:22:57 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.