MAC Address Lookup

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


Dongguan Pengchen Earth Instrument CO. LT

Unique prefixes: 2

Block Size: 1052670 (1.05 M)

First registration: 24 November 2021

Last updated: 30 November 2021


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

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

MAC PrefixTypeRegistration Date