OUI Lookup
40a63d
SignalFire Telemetry
Manufacturer Information
- OUI Prefix
- 40a63d
- Manufacturer
- SignalFire Telemetry
- Address
- 140 Locke Dr. Suite B Marlborough MA US 01752
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 40A63D
The OUI prefix 40A63D is assigned to SignalFire Telemetry, based in 140 Locke Dr. Suite B Marlborough MA US 01752 . 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 SignalFire Telemetry.