MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
TESTO AG
MAC address prefix 00:19:4A is registered to TESTO AG, located at Testo Straße 1Lenzkirch Baden-Württemberg 79853DE.
This registration is classified as MA-L (Mac Address Block Large) containing approximately 16 million MAC addresses
The prefix was initially registered on 15 August 2006, with the most recent update made on 17 November 2015.
OUI: 00:19:4A
Vendor name: TESTO AG
Address:
Assignment Type MA-L Testo Straße 1
Lenzkirch Baden-Württemberg 79853
DE.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Last updated: 17 November 2015
Initial registration: 15 August 2006
