8C:1F:64:91:C0:00 to 8C:1F:64:91:CF:FF
Cospowers Changsha Branch
Inspect this prefixRegistered address
Building 13, Phase I, Zhongdian Software Park, 39 Jianshan Road, Yuelu District, Changsha City
Changsha Hunan 410000
Block details
- Registry
- MA-S, MAC Address Block Small (OUI-36)
- Prefix
- 8C:1F:64:91:C /36
- Addresses in block
- 4,096
- Decimal range
- 154,066,459,148,288 to 154,066,459,152,383
- Address type
- Unicast, universally administered
What this block covers
A 36 bit block, the smallest the IEEE sells. Suited to low volume products that will never ship 4096 units of anything.
Any MAC address between 8C:1F:64:91:C0:00 and 8C:1F:64:91:CF:FF belongs to this assignment. The registrant chooses the remaining 12 bits, so the same prefix can appear on very different products from the same company.