00:1D:74 Tianjin China-Silicon Microelectronics Co., Ltd.
Every MAC address from 00:1D:74:00:00:00 to 00:1D:74:FF:FF:FF belongs to a block the IEEE assigned to Tianjin China-Silicon Microelectronics Co., Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:1D:74 belongs to
Written 00:1D:74, 00-1D-74 or 001D74, depending on the system. Look up a full address.
Prefix
00:1D:74
Organization
Tianjin China-Silicon Microelectronics Co., Ltd.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:1D:74:00:00:00
Last address
00:1D:74:FF:FF:FF
Address type
Globally unique, unicast
Registered address
301,3F Building 211,No.214 Hongqi Road, Nankai District, Tianjin China Tianjin CN 300190