The IEEE registry carries 2 blocks registered to SHANGHAI CHENZHU INSTRUMENT CO., LTD., together 1.1 million addresses, first observed 2 Apr 2017, most recently 23 Aug 2026.
Registered in CN.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 04:EC:A9:6 | MA-M | 1 million | CN | 23 Aug 2026 |
| 70:B3:D5:46:C | MA-S | 4.1 thousand | CN | 2 Apr 2017 |
Every block registered to SHANGHAI CHENZHU INSTRUMENT CO., LTD. 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.