- Prefix
- 00:21:4D 00-21-4D 0021.4D
- Block type
- MA-L (16,777,216 addresses)
- Address range
- 00:21:4D:00:00:00 – 00:21:4D:FF:FF:FF
- Organization
- Guangzhou Skytone Transmission Technology Com. Ltd.
- Registered address
- 3/F West, Block 4, Huangzhou, Guangzhou Guangdong 510660, CN
- Country
- China (CN)
- Address bits
- Unicast (I/G bit 0), globally unique (U/L bit 0)
Look up 00:21:4D:00:00:00
Guangzhou Skytone Transmission Technology Com. Ltd. holds 1 block in total: see all. Source: IEEE Registration Authority public listing.