00:21:CB SMS TECNOLOGIA ELETRONICA LTDA
Every MAC address from 00:21:CB:00:00:00 to 00:21:CB:FF:FF:FF belongs to a block the IEEE assigned to SMS TECNOLOGIA ELETRONICA LTDA. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:21:CB belongs to
Written 00:21:CB, 00-21-CB or 0021CB, depending on the system. Look up a full address.
Prefix
00:21:CB
Organization
SMS TECNOLOGIA ELETRONICA LTDA
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:21:CB:00:00:00
Last address
00:21:CB:FF:FF:FF
Address type
Globally unique, unicast
Registered address
Av. Pirâmide, 661 DIADEMA São Paulo BR 09970330