MAC Address Lookup

Find the vendor name of a device by entering an OUI or a MAC address

 MAC

R-S-I Elektrotechnik GmbH & Co. KG

Unique prefixes: 2

Block Size: 1052670 (1.05 M)

First registration: 21 February 2011

Last updated: 28 October 2017

Types

IAB: Individual Address Blocks. Number of address 2^24 (~16 Million)

MA-M: Mac Address Block Medium. Number of address 2^20 (~1 Million)

MAC PrefixTypeRegistration Date
00:50:C2:87:1IAB2011-02-21
9C:43:1E:6MA-M2017-10-28