SIMCom Wireless Solutions Co.,Ltd.

Any device whose MAC address begins with 38:1C:4A has a network interface built by SIMCom Wireless Solutions 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

38:1C:4A

Organization

SIMCom Wireless Solutions Co.,Ltd.

Address

Building A,SIM Technology Building,No.633,Jinzhong Road, Shanghai CN 200335

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.