28:2C:02:40:00:00 to 28:2C:02:4F:FF:FF
EFENTO T P SZYDŁOWSKI K ZARĘBA SPÓŁKA JAWNA
Inspect this prefixRegistered address
Dietla 93/6
Kraków 31-031
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- 28:2C:02:4 /28
- Addresses in block
- 1,048,576
- Decimal range
- 44,169,481,420,800 to 44,169,482,469,375
- 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 28:2C:02:40:00:00 and 28:2C:02:4F: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.