74:5B:C5:90:00:00 to 74:5B:C5:9F:FF:FF
Haikou Frun Flash&Mcu Microcontrol Technology Development Co.,Ltd
Inspect this prefixRegistered address
5 floor A1-9, A building, incubation center, Haikou national hi tech Development Zone
Haikou Hainan 570206
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 74:5B:C5:9 /28
- Addresses in block
- 1,048,576
- Decimal range
- 127,937,505,394,688 to 127,937,506,443,263
- Address type
- Unicast, universally administered
What this block covers
A 28 bit block. Sixteen of these fit inside one 24 bit prefix, so the first three octets are shared with other registrants.
Any MAC address between 74:5B:C5:90:00:00 and 74:5B:C5:9F:FF:FF belongs to this assignment. The registrant chooses the remaining 20 bits, so the same prefix can appear on very different products from the same company.