ELECOM CO., LTD

Any device whose MAC address begins with 48:04:9F has a network interface built by ELECOM 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

48:04:9F

Organization

ELECOM CO., LTD

Address

9FLand Axis Tower.1-1 fushimi machi,4-chome chuoku osaka JP 5418765

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.