| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:50:C2:66:A | IAB | 4.1 thousand | CN | 30 Jul 2008 |
| 00:50:C2:7A:3 | IAB | 4.1 thousand | CN | 30 Jul 2008 |
| 00:50:C2:9F:9 | IAB | 4.1 thousand | CN | 7 Dec 2008 |
| 00:50:C2:B9:2 | IAB | 4.1 thousand | CN | 15 Nov 2009 |
| 00:50:C2:C0:A | IAB | 4.1 thousand | CN | 14 Feb 2010 |
| 00:50:C2:CD:C | IAB | 4.1 thousand | CN | 25 Jul 2010 |
| 00:50:C2:D8:4 | IAB | 4.1 thousand | CN | 5 Dec 2010 |
| 00:50:C2:DE:1 | IAB | 4.1 thousand | CN | 6 Mar 2011 |
| 00:50:C2:E1:8 | IAB | 4.1 thousand | CN | 8 May 2011 |
| 00:50:C2:E8:4 | IAB | 4.1 thousand | CN | 28 Aug 2011 |
| 00:50:C2:EE:E | IAB | 4.1 thousand | CN | 4 Dec 2011 |
| 00:50:C2:F1:7 | IAB | 4.1 thousand | CN | 15 Jan 2012 |
Every block registered to ABB Transmission and Distribution Automation Equipment (Xiamen) Co., Ltd. in the IEEE registries, complete. Free-text search also matches former owners.