70:B3:D5:14:B0:00 to 70:B3:D5:14:BF:FF
C21 Systems Ltd
Inspect this prefixRegistered address
Dunston Innovation Centre
Chesterfield Derbyshire S41 8NG
Block details
- Registry
- MA-S, MAC Address Block Small (OUI-36)
- Prefix
- 70:B3:D5:14:B /36
- Addresses in block
- 4,096
- Decimal range
- 123,917,676,359,680 to 123,917,676,363,775
- 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 70:B3:D5:14:B0:00 and 70:B3:D5:14:BF: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.