- Prefix
- 00:21:CB 00-21-CB 0021.CB
- Block type
- MA-L (16,777,216 addresses)
- Address range
- 00:21:CB:00:00:00 – 00:21:CB:FF:FF:FF
- Organization
- SMS TECNOLOGIA ELETRONICA LTDA
- Registered address
- Av. Pirâmide, 661, DIADEMA São Paulo 09970330, BR
- Country
- Brazil (BR)
- Address bits
- Unicast (I/G bit 0), globally unique (U/L bit 0)
Look up 00:21:CB:00:00:00
SMS TECNOLOGIA ELETRONICA LTDA holds 1 block in total: see all. Source: IEEE Registration Authority public listing.