- Prefix
- D0:A4:B1 D0-A4-B1 D0A4.B1
- Block type
- MA-L (16,777,216 addresses)
- Address range
- D0:A4:B1:00:00:00 – D0:A4:B1:FF:FF:FF
- Organization
- Sonifex Ltd.
- Registered address
- 61 Station Road, Irthlingborough Northamptonshire NN9 5QE, GB
- Country
- United Kingdom (GB)
- Address bits
- Unicast (I/G bit 0), globally unique (U/L bit 0)
Look up D0:A4:B1:00:00:00
Sonifex Ltd. holds 1 block in total: see all. Source: IEEE Registration Authority public listing.