MAC Address Lookup

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

 MAC

OPTEC DAIICHI DENKO CO., LTD.

OUI prefix: 00:40:39

Vendor name: OPTEC DAIICHI DENKO CO., LTD.

Address:

FIBER OPTICS & TELECOM. DIV.
JAPAN.

Assignment Type MA-L

Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)

Last updated: 17 November 2015

Initial registration: 22 April 1998