Guangdong COROS Sports Technology Co.,Ltd

Any device whose MAC address begins with 80:40:05 has a network interface built by Guangdong COROS Sports Technology 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

80:40:05

Organization

Guangdong COROS Sports Technology Co.,Ltd

Address

Room 601 & 701, Bld. 2, No.2, Science and Technology 9 Rd, Songshan Lake Hi-Tech Zone, Dongguan 523808, Guandong, China Dongguan Guangdong CN 523808

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.