- Prefix
- B4:21:1D B4-21-1D B421.1D
- Block type
- MA-L (16,777,216 addresses)
- Address range
- B4:21:1D:00:00:00 – B4:21:1D:FF:FF:FF
- Organization
- Beijing GuangXin Technology Co., Ltd
- Registered address
- Room 313,B Bld,Horizon International Tower,Zhichun Road,6,Haidian District,Beijing City,P.R.China, Beijing 100086, CN
- Country
- China (CN)
- Address bits
- Unicast (I/G bit 0), globally unique (U/L bit 0)
Look up B4:21:1D:00:00:00
Beijing GuangXin Technology Co., Ltd holds 1 block in total: see all. Source: IEEE Registration Authority public listing.