18:45:B3:10:00:00 to 18:45:B3:1F:FF:FF
Pfannenberg GmbH
Inspect this prefixRegistered address
Werner-Witt-Straße 1
Hamburg Hamburg 21035
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 18:45:B3:1 /28
- Addresses in block
- 1,048,576
- Decimal range
- 26,687,635,980,288 to 26,687,637,028,863
- 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 18:45:B3:10:00:00 and 18:45:B3:1F: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.