Speedytel technology

Any device whose MAC address begins with C4:93:80 has a network interface built by Speedytel technology. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

C4:93:80

Organization

Speedytel technology

Address

ROOM 1103,HANG SENG MONGKOK BUILDING,677 NATHAN ROAD,MONGKOK,KOWLOON HONG KONG HONG KONG HK

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.