OUI Lookup
8c4db9
Unmonday Ltd
Manufacturer Information
- OUI Prefix
- 8c4db9
- Manufacturer
- Unmonday Ltd
- Address
- Laivakatu 3 Helsinki Uusimaa FI 00150
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 8C4DB9
The OUI prefix 8C4DB9 is assigned to Unmonday Ltd, based in Laivakatu 3 Helsinki Uusimaa FI 00150 . 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 Unmonday Ltd.