Ircona

Any device whose MAC address begins with 00:1A:59 has a network interface built by Ircona. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:1A:59

Organization

Ircona

Address

Unit 4B-1, Corporate Park Blanchardstown Dublin IE 15

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.