- Prefix
- 58:75:21 58-75-21 5875.21
- Block type
- MA-L (16,777,216 addresses)
- Address range
- 58:75:21:00:00:00 – 58:75:21:FF:FF:FF
- Organization
- CJSC RTSoft
- Registered address
- Nikitinskaya str., 3, Moscow 105037, RU
- Country
- Russian Federation (RU)
- Address bits
- Unicast (I/G bit 0), globally unique (U/L bit 0)
Look up 58:75:21:00:00:00
CJSC RTSoft holds 1 block in total: see all. Source: IEEE Registration Authority public listing.