| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:50:C2:44:7 | IAB | 4.1 thousand | ES | 30 Jul 2008 |
| 00:50:C2:56:A | IAB | 4.1 thousand | ES | 30 Jul 2008 |
| 00:50:C2:5F:8 | IAB | 4.1 thousand | ES | 30 Jul 2008 |
| 00:50:C2:7A:A | IAB | 4.1 thousand | ES | 30 Jul 2008 |
| 00:50:C2:85:7 | IAB | 4.1 thousand | ES | 30 Jul 2008 |
| 00:50:C2:95:3 | IAB | 4.1 thousand | ES | 30 Jul 2008 |
| 00:50:C2:A2:4 | IAB | 4.1 thousand | ES | 11 Jan 2009 |
| 00:50:C2:BE:4 | IAB | 4.1 thousand | ES | 24 Jan 2010 |
| 00:50:C2:CF:A | IAB | 4.1 thousand | ES | 22 Aug 2010 |
| 00:50:C2:E3:C | IAB | 4.1 thousand | ES | 7 Aug 2011 |
| 00:50:C2:F3:5 | IAB | 4.1 thousand | ES | 19 Feb 2012 |
| 40:D8:55:02:7 | IAB | 4.1 thousand | US | 21 Oct 2012 |
| 40:D8:55:11:1 | IAB | 4.1 thousand | ES | 2 Jun 2013 |
| 70:B3:D5:2E:C | MA-S | 4.1 thousand | ES | 16 Oct 2016 |
| 70:B3:D5:40:D | MA-S | 4.1 thousand | ES | 6 Mar 2020 |
| 70:B3:D5:4E:1 | MA-S | 4.1 thousand | ES | 29 Oct 2017 |
| 70:B3:D5:76:E | MA-S | 4.1 thousand | ES | 20 Jul 2014 |
| 70:B3:D5:7D:A | MA-S | 4.1 thousand | ES | 20 Nov 2018 |
| 70:B3:D5:C1:4 | MA-S | 4.1 thousand | ES | 14 May 2017 |
| 70:B3:D5:CA:8 | MA-S | 4.1 thousand | ES | 1 Mar 2015 |
| 70:B3:D5:D1:B | MA-S | 4.1 thousand | ES | 25 Oct 2015 |
| 70:B3:D5:D9:E | MA-S | 4.1 thousand | ES | 12 Jan 2014 |
| 70:B3:D5:EA:4 | MA-S | 4.1 thousand | ES | 31 May 2015 |
| 8C:1F:64:BB:2 | MA-S | 4.1 thousand | ES | 23 May 2023 |
| 8C:1F:64:D5:4 | MA-S | 4.1 thousand | ES | 25 Jun 2021 |
Every block registered to Grupo Epelsa S.L. in the IEEE registries, complete. Free-text search also matches former owners.