MAC prefix DC:B3:B4
Honeywell Environmental & Combustion Controls (Tianjin) Co., Ltd.
| Vendor | Honeywell Environmental & Combustion Controls (Tianjin) Co., Ltd. |
|---|---|
| Short name | HoneywellEnv |
| Prefix | DC:B3:B4/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | DC:B3:B4:00:00:00 – DC:B3:B4:FF:FF:FF |
| Notations | DC:B3:B4:00:00:00DC-B3-B4-00-00-00dcb3.b400.0000DCB3B4000000 |
Frequently asked questions
Which vendor does MAC address DC:B3:B4 belong to?
MAC addresses starting with DC:B3:B4 are assigned to Honeywell Environmental & Combustion Controls (Tianjin) Co., Ltd. according to the IEEE registry (prefix length 24 bits).
How many addresses does block DC:B3:B4 contain?
The block contains 16,777,216 addresses from DC:B3:B4:00:00:00 to DC:B3:B4:FF:FF:FF.
Is DC:B3:B4 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.