MAC prefix A4:9F:89
Shanghai Rui Rui Communication Technology Co.Ltd.
| Vendor | Shanghai Rui Rui Communication Technology Co.Ltd. |
|---|---|
| Short name | RuiRuiCommun |
| Prefix | A4:9F:89/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | A4:9F:89:00:00:00 – A4:9F:89:FF:FF:FF |
| Notations | A4:9F:89:00:00:00A4-9F-89-00-00-00a49f.8900.0000A49F89000000 |
Frequently asked questions
Which vendor does MAC address A4:9F:89 belong to?
MAC addresses starting with A4:9F:89 are assigned to Shanghai Rui Rui Communication Technology Co.Ltd. according to the IEEE registry (prefix length 24 bits).
How many addresses does block A4:9F:89 contain?
The block contains 16,777,216 addresses from A4:9F:89:00:00:00 to A4:9F:89:FF:FF:FF.
Is A4:9F:89 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.