The IEEE registry carries 2 blocks registered to Crystal Group, Inc., together 33.6 million addresses, first observed 8 Sep 2000, most recently 14 Oct 2002.
Registered in US.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:90:D6 | MA-L | 16.8 million | US | 8 Sep 2000 |
| 00:91:D6 | MA-L | 16.8 million | US | 14 Oct 2002 |
Every block registered to Crystal Group, Inc. in the IEEE registries, complete. Free-text search also matches former owners.
Complete as of the current IEEE registry deploy. Dates are when each registration was first observed in public data, not legal assignment dates.