MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
ES
IEEE Registrant 5 Prefixes
ESSYS
ESSYS, accessible at www.essys.co.kr, manages 5 unique MAC address prefixes. These prefixes have a total block size of 83.9 million addresses.
The allocation includes the following types: MA-L(MAC Address Block Large, 16,777,216 addresses each).
The company registered its MAC address allocation on 13 December 2013, and the most recent update was made on 28 May 2026. These allocations support network identification and communication globally.
Unique prefixes 5
Block Size 83886075 (83.88 M)
First registration 13 December 2013
Last updated 28 May 2026
Entity Details
Unique prefixes 5
Block Size 83886075 (83.88 M)
Website www.essys.co.kr
First registration 13 December 2013
Last updated 28 May 2026
Types
MA-L: Block Type
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)