B0:1F:81:A0:00:00 to B0:1F:81:AF:FF:FF
Steffens Systems GmbH
Inspect this prefixRegistered address
Mathias-Brüggenstr. 83
Cologne NRW 50829
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- B0:1F:81:A /28
- Addresses in block
- 1,048,576
- Decimal range
- 193,649,365,221,376 to 193,649,366,269,951
- Address type
- Unicast, universally administered
What this block covers
A 28 bit block. Sixteen of these fit inside one 24 bit prefix, so the first three octets are shared with other registrants.
Any MAC address between B0:1F:81:A0:00:00 and B0:1F:81:AF:FF:FF belongs to this assignment. The registrant chooses the remaining 20 bits, so the same prefix can appear on very different products from the same company.