Shenzhen HAMP Science & Technology Co.,Ltd

Any device whose MAC address begins with 00:21:4B has a network interface built by Shenzhen HAMP Science & 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

00:21:4B

Organization

Shenzhen HAMP Science & Technology Co.,Ltd

Address

No.302-303,3 Floor,District A,TCL Tower,Gaoxin Nan Yi Road,NanShan District Shenzhen Guangdong CN 518057

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.