4C:91:7A:C0:00:00 to 4C:91:7A:CF:FF:FF
Alibaba (Beijing) Software Service Inc.
Inspect this prefixRegistered address
No. 301, 3 floor, 9 building, four district, Wangjing East Garden, Chaoyang District,
Beijing Beijing 100102
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 4C:91:7A:C /28
- Addresses in block
- 1,048,576
- Decimal range
- 84,187,713,372,160 to 84,187,714,420,735
- 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 4C:91:7A:C0:00:00 and 4C:91:7A:CF: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.