MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
eFAB P.S.A.
MAC address prefix 84:5B:0C is registered to eFAB P.S.A., located at al. Solidarości 129/131/197VATID: PL5272968735Warsaw Mazowieckie 00-898PL.
This registration is classified as MA-L (Mac Address Block Large) containing approximately 16 million MAC addresses
The prefix was registered on 19 November 2025, and no subsequent updates have been recorded.
OUI: 84:5B:0C
Vendor name: eFAB P.S.A.
Address:
Assignment Type MA-L al. Solidarości 129/131/197VATID: PL5272968735
Warsaw Mazowieckie 00-898
PL.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Initial registration: 19 November 2025
