PROVISION THAI CO., LTD.

Any device whose MAC address begins with 18:A9:58 has a network interface built by PROVISION THAI 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

18:A9:58

Organization

PROVISION THAI CO., LTD.

Address

155/7-10 Rachadapisek Rd., Thonburi Bangkok TH 10600

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.