KOREA MAINTENANCE

Any device whose MAC address begins with 00:25:D8 has a network interface built by KOREA MAINTENANCE. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:25:D8

Organization

KOREA MAINTENANCE

Address

3F HAELIM BUIDING 103-7, GURO-5DONG SEOUL KR 152-842

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.