MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address prefix 4C:EF:E1 is registered to Dynacon Sp. z o.o., located at Wrzosowa 2Kąty Wrocławskie dolnośląskie 55-080PL.
This registration is classified as MA-L (Mac Address Block Large) containing 16,777,216 MAC addresses (2^24)
The prefix was registered on 27 October 2025, and no subsequent updates have been recorded.
OUI: 4C:EF:E1
Vendor name: Dynacon Sp. z o.o.
Address:
Assignment Type MA-L Wrzosowa 2
Kąty Wrocławskie dolnośląskie 55-080
PL.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Initial registration: 27 October 2025
