San-Eisha, Ltd.

Any device whose MAC address begins with 00:1E:9B has a network interface built by San-Eisha, 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

00:1E:9B

Organization

San-Eisha, Ltd.

Address

2-1 Ebara 5-chome Shinagawa-ku Tokyo JP 142-8611

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.