28:B4:FB Sprocomm Technologies CO.,LTD.
Every MAC address from 28:B4:FB:00:00:00 to 28:B4:FB:FF:FF:FF belongs to a block the IEEE assigned to Sprocomm Technologies CO.,LTD.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 28:B4:FB belongs to
Written 28:B4:FB, 28-B4-FB or 28B4FB, depending on the system. Look up a full address.
Prefix
28:B4:FB
Organization
Sprocomm Technologies CO.,LTD.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
28:B4:FB:00:00:00
Last address
28:B4:FB:FF:FF:FF
Address type
Globally unique, unicast
Registered address
5D F1.6 Block,Tianfa Building,Tianan Chegongmiao Industrial park,Futian Dist shenzhen guangdong CN 518000
Same organization
Other blocks assigned to Sprocomm Technologies CO.,LTD.
1 more block registered under the same name.