MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
OPTEC DAIICHI DENKO CO., LTD.
MAC address prefix 00:40:39 is registered to OPTEC DAIICHI DENKO CO., LTD., located at FIBER OPTICS & TELECOM. DIV.JAPAN.
This registration is classified as MA-L (Mac Address Block Large) containing approximately 16 million MAC addresses
The prefix was initially registered on 22 April 1998, with the most recent update made on 17 November 2015.
OUI: 00:40:39
Vendor name: OPTEC DAIICHI DENKO CO., LTD.
Address:
Assignment Type MA-L FIBER OPTICS & TELECOM. DIV.
JAPAN.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Last updated: 17 November 2015
Initial registration: 22 April 1998