28:2C:02:4 EFENTO T P SZYDŁOWSKI K ZARĘBA SPÓŁKA JAWNA
Every MAC address from 28:2C:02:40:00:00 to 28:2C:02:4F:FF:FF belongs to a block the IEEE assigned to EFENTO T P SZYDŁOWSKI K ZARĘBA SPÓŁKA JAWNA. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 28:2C:02:4 belongs to
Written 28:2C:02:4, 28-2C-02-4 or 282C024, depending on the system. Look up a full address.
Prefix
28:2C:02:4/28
Organization
EFENTO T P SZYDŁOWSKI K ZARĘBA SPÓŁKA JAWNA
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
28:2C:02:40:00:00
Last address
28:2C:02:4F:FF:FF
Address type
Globally unique, unicast
Registered address
Dietla 93/6 Kraków PL 31-031
Parent block
Inside 28:2C:02
This MA-M block is carved from the 24-bit block 28:2C:02, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.
Same organization
Other blocks assigned to EFENTO T P SZYDŁOWSKI K ZARĘBA SPÓŁKA JAWNA
1 more block registered under the same name.