MAC prefix B4:CB:57
Guangdong Oppo Mobile Telecommunications Corp.,Ltd
| Vendor | Guangdong Oppo Mobile Telecommunications Corp.,Ltd |
|---|---|
| Short name | OppoMobileTe |
| Prefix | B4:CB:57/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | B4:CB:57:00:00:00 – B4:CB:57:FF:FF:FF |
| Notations | B4:CB:57:00:00:00B4-CB-57-00-00-00b4cb.5700.0000B4CB57000000 |
Frequently asked questions
Which vendor does MAC address B4:CB:57 belong to?
MAC addresses starting with B4:CB:57 are assigned to Guangdong Oppo Mobile Telecommunications Corp.,Ltd according to the IEEE registry (prefix length 24 bits).
How many addresses does block B4:CB:57 contain?
The block contains 16,777,216 addresses from B4:CB:57:00:00:00 to B4:CB:57:FF:FF:FF.
Is B4:CB: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.
Which other MAC prefixes does Guangdong Oppo Mobile Telecommunications Corp.,Ltd have?
Guangdong Oppo Mobile Telecommunications Corp.,Ltd holds 192 registered prefixes in total – the full list is on the vendor page.