MAC Address Lookup

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

 Vendor

Monarch Instrument

Unique prefixes: 3

Block Size: 12285 (12.28 k)

First registration: 21 February 2011

Last updated: 29 October 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:C2:69:7IAB2011-02-21
40:D8:55:00:5IAB2012-11-04
8C:1F:64:D4:4MA-S2021-10-29