OUI Lookup
307ecb
SFR
Manufacturer Information
- OUI Prefix
- 307ecb
- Manufacturer
- SFR
- Address
- 40/42 Quai du point du jour Boulongne Billancourt Hauts de Seine FR 92659
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 12
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 307ECB
The OUI prefix 307ECB is assigned to SFR, based in 40/42 Quai du point du jour Boulongne Billancourt Hauts de Seine FR 92659 . 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 SFR.