ShenZhen TIGO Semiconductor Co., Ltd.

Any device whose MAC address begins with EC:04:41 has a network interface built by ShenZhen TIGO Semiconductor 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

EC:04:41

Organization

ShenZhen TIGO Semiconductor Co., Ltd.

Address

Room B6-709, Funian Plaza, No.3 Shihua Road, Futian Bonded Area shenzhen China / Guangdong CN 518048

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.