8C:1F:64:5C:50:00 to 8C:1F:64:5C:5F:FF
Active Research Limited
Inspect this prefixRegistered address
21 Harwell Road
Poole Dorset BH17 0GE
Block details
- Registry
- MA-S, MAC Address Block Small (OUI-36)
- Prefix
- 8C:1F:64:5C:5 /36
- Addresses in block
- 4,096
- Decimal range
- 154,066,455,646,208 to 154,066,455,650,303
- 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:64:5C:50:00 and 8C:1F:64:5C:5F: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.