8C:1F:64:77:E0:00 to 8C:1F:64:77:EF:FF
Institute of geophysics, China earthquake administration
Inspect this prefixRegistered address
NO.5 minzuaxue south road, haidian district,
beijing 100000
Block details
- Registry
- MA-S, MAC Address Block Small (OUI-36)
- Prefix
- 8C:1F:64:77:E /36
- Addresses in block
- 4,096
- Decimal range
- 154,066,457,452,544 to 154,066,457,456,639
- 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:64:77:E0:00 and 8C:1F:64:77:EF: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.