ASAHIKASEI TECHNOSYSTEM CO.,LTD.

Any device whose MAC address begins with 00:0D:20 has a network interface built by ASAHIKASEI TECHNOSYSTEM CO.,LTD.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:0D:20

Organization

ASAHIKASEI TECHNOSYSTEM CO.,LTD.

Address

Kanda Jinbocho 1-105 Chiyoda-ku Tokyo JP 101-8101

Source

IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.