OUI Lookup
640de6
Petra Systems
Manufacturer Information
- OUI Prefix
- 640de6
- Manufacturer
- Petra Systems
- Address
- One Cragwood Road South Plainfield NJ US 07080
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 640DE6
The OUI prefix 640DE6 is assigned to Petra Systems, based in One Cragwood Road South Plainfield NJ US 07080 . 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 Petra Systems.