OUI Lookup
340f66
Web Sensing LLC
Manufacturer Information
- OUI Prefix
- 340f66
- Manufacturer
- Web Sensing LLC
- Address
- P.O. Box 692 Hanover NH US 03755
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 340F66
The OUI prefix 340F66 is assigned to Web Sensing LLC, based in P.O. Box 692 Hanover NH US 03755 . 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 Web Sensing LLC.