70:B3:D5:FB:00:00 to 70:B3:D5:FB:0F:FF
Rohde&Schwarz Topex SA
Inspect this prefixRegistered address
71th-73th Nicolae Caramfil street, 2nd floor, 1th district
Bucuresti Romania 014142
Block details
- Registry
- MA-S, MAC Address Block Small (OUI-36)
- Prefix
- 70:B3:D5:FB:0 /36
- Addresses in block
- 4,096
- Decimal range
- 123,917,691,453,440 to 123,917,691,457,535
- 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:FB:00:00 and 70:B3:D5:FB:0F: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.