MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
Proximus sp. z .o.o.
MAC address prefix 18:C3:E4:3 is registered to Proximus sp. z .o.o., located at ul. Piatkowska 163Poznan 60-650PL.
This registration is classified as MA-M (Mac Address Block Medium) containing approximately 16 million MAC addresses
The prefix was registered on 17 February 2026, and no subsequent updates have been recorded.
OUI: 18:C3:E4:3
Vendor name: Proximus sp. z .o.o.
Address:
Assignment Type MA-M ul. Piatkowska 163
Poznan 60-650
PL.
Mac Address Block Medium. Number of address 2^20 (~1 Million)
Initial registration: 17 February 2026
