OUI Lookup
0090cd
ENT-EMPRESA NACIONAL DE TELECOMMUNICACOES, S.A.
Manufacturer Information
- OUI Prefix
- 0090cd
- Manufacturer
- ENT-EMPRESA NACIONAL DE TELECOMMUNICACOES, S.A.
- Address
- R. ENG FREDERICO ULRICH - APARTADO 3081 Guardeiras - 4470 Moreira Maia PT
- Last updated
- 6/9/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 0090CD
The OUI prefix 0090CD is assigned to ENT-EMPRESA NACIONAL DE TELECOMMUNICACOES, S.A., based in R. ENG FREDERICO ULRICH - APARTADO 3081 Guardeiras - 4470 Moreira Maia PT . 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 ENT-EMPRESA NACIONAL DE TELECOMMUNICACOES, S.A..