MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
fünfeinhalb Funksysteme GmbH
MAC address prefix B4:E8:5C is registered to fünfeinhalb Funksysteme GmbH, located at Chemnitzer Straße 78ADresden Saxony 01187DE.
This registration is classified as MA-L (Mac Address Block Large) containing approximately 16 million MAC addresses
The prefix was initially registered on 28 October 2024, with the most recent update made on 12 May 2025.
OUI: B4:E8:5C
Vendor name: fünfeinhalb Funksysteme GmbH
Address:
Assignment Type MA-L Chemnitzer Straße 78A
Dresden Saxony 01187
DE.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Last updated: 12 May 2025
Initial registration: 28 October 2024
