MAC Address Lookup

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

 MAC

GSP Sprachtechnologie GmbH

Unique prefixes: 8

Block Size: 32760 (32.76 k)

First registration: 21 February 2011

Last updated: 14 April 2021

Types

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

MA-S: Mac Address Block Small (previously named OUI-36, encompasses IAB Assignments). Number of address 2^12 (4096)

MAC PrefixTypeRegistration Date
00:50:C2:A5:9IAB2011-02-21
00:50:C2:F8:3IAB2012-05-09
40:D8:55:13:0IAB2013-08-29
70:B3:D5:12:0MA-S2016-02-18
70:B3:D5:2A:4MA-S2018-02-15
70:B3:D5:69:5MA-S2019-10-17
70:B3:D5:93:CMA-S2020-10-15
8C:1F:64:B6:4MA-S2021-04-14