- Prefix
- 00:21:0A 00-21-0A 0021.0A
- Block type
- MA-L (16,777,216 addresses)
- Address range
- 00:21:0A:00:00:00 – 00:21:0A:FF:FF:FF
- Organization
- byd:sign Corporation
- Registered address
- 2-10-6 Tsukiji, Chuo-ku Tokyo 104-0045, JP
- Country
- Japan (JP)
- Address bits
- Unicast (I/G bit 0), globally unique (U/L bit 0)
Look up 00:21:0A:00:00:00
byd:sign Corporation holds 1 block in total: see all. Source: IEEE Registration Authority public listing.