- Prefix
- 00:21:81 00-21-81 0021.81
- Block type
- MA-L (16,777,216 addresses)
- Address range
- 00:21:81:00:00:00 – 00:21:81:FF:FF:FF
- Organization
- Si2 Microsystems Limited
- Registered address
- No 84, Sy No 150, EPIP, Whitefield Industrial Area, Bangalore Karnataka 560066, IN
- Country
- India (IN)
- Address bits
- Unicast (I/G bit 0), globally unique (U/L bit 0)
Look up 00:21:81:00:00:00
Si2 Microsystems Limited holds 1 block in total: see all. Source: IEEE Registration Authority public listing.