- Prefix
- 00:21:61 00-21-61 0021.61
- Block type
- MA-L (16,777,216 addresses)
- Address range
- 00:21:61:00:00:00 – 00:21:61:FF:FF:FF
- Organization
- Yournet Inc.
- Registered address
- KT R&D Center, Seoul 137-792, KR
- Country
- South Korea (KR)
- Address bits
- Unicast (I/G bit 0), globally unique (U/L bit 0)
Look up 00:21:61:00:00:00
Yournet Inc. holds 1 block in total: see all. Source: IEEE Registration Authority public listing.