MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
Umezawa Musen Denki Co., Ltd.
Vendor name: Umezawa Musen Denki Co., Ltd.
Hokkaido JAPAN 060-0061
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Last updated: 17 November 2015
Initial registration: 09 November 2000