OUI Lookup
7857b0
GERTEC BRASIL LTDA
Manufacturer Information
- OUI Prefix
- 7857b0
- Manufacturer
- GERTEC BRASIL LTDA
- Address
- Avenida Jabaquara, 3060, room 601 Sao Paulo São Paulo BR 04046500
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 2
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 7857B0
The OUI prefix 7857B0 is assigned to GERTEC BRASIL LTDA, based in Avenida Jabaquara, 3060, room 601 Sao Paulo São Paulo BR 04046500 . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to GERTEC BRASIL LTDA.