topsystem GmbH

MAC address prefix E4:12:89 is registered to topsystem GmbH, located at Krefelder Straße 201Aachen 52070DE.

This registration is classified as MA-L (Mac Address Block Large) containing approximately 16 million MAC addresses

The prefix was initially registered on 07 May 2011, with the most recent update made on 11 January 2023.

OUI: E4:12:89

Vendor name: topsystem GmbH

Address:

Krefelder Straße 201
Aachen 52070
DE.

Assignment Type MA-L

Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)

Last updated: 11 January 2023

Initial registration: 07 May 2011

MAC Address Vendor Country DE map