70:53:3F Alfa Instrumentos Eletronicos Ltda.
Every MAC address from 70:53:3F:00:00:00 to 70:53:3F:FF:FF:FF belongs to a block the IEEE assigned to Alfa Instrumentos Eletronicos Ltda.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 70:53:3F belongs to
Written 70:53:3F, 70-53-3F or 70533F, depending on the system. Look up a full address.
Prefix
70:53:3F
Organization
Alfa Instrumentos Eletronicos Ltda.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
70:53:3F:00:00:00
Last address
70:53:3F:FF:FF:FF
Address type
Globally unique, unicast
Registered address
Rua Coronel Mario de Azevedo, 138 Sao Paulo SP BR 02710-020