| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:00:A5 | MA-L | 16.8 million | US | 22 Apr 1998 |
| 00:20:31 | MA-L | 16.8 million | DE | 22 Apr 1998 |
| 00:20:B3 | MA-L | 16.8 million | AU | 22 Apr 1998 |
| 00:40:75 | MA-L | 16.8 million | GB | 8 Sep 2000 |
| 00:40:8E | MA-L | 16.8 million | US | 22 Apr 1998 |
| 00:60:4F | MA-L | 16.8 million | JP | 22 Apr 1998 |
| 00:80:46 | MA-L | 16.8 million | CA | 22 Apr 1998 |
| 00:90:43 | MA-L | 16.8 million | JP | 8 Sep 2000 |
| 00:90:8B | MA-L | 16.8 million | US | 22 Apr 1998 |
| 00:A0:80 | MA-L | 16.8 million | US | 22 Apr 1998 |
| 00:50:C2:1F:2 | IAB | 4.1 thousand | IT | 30 Jul 2008 |
| 00:50:C2:26:1 | IAB | 4.1 thousand | IT | 30 Jul 2008 |
| 00:50:C2:28:E | IAB | 4.1 thousand | IT | 30 Jul 2008 |
| 00:50:C2:36:4 | IAB | 4.1 thousand | IT | 30 Jul 2008 |
| 00:50:C2:46:1 | IAB | 4.1 thousand | IT | 30 Jul 2008 |
| 00:50:C2:52:8 | IAB | 4.1 thousand | IT | 30 Jul 2008 |
| 00:50:C2:61:3 | IAB | 4.1 thousand | IT | 30 Jul 2008 |
| 00:50:C2:73:9 | IAB | 4.1 thousand | IT | 30 Jul 2008 |
| 00:50:C2:7B:7 | IAB | 4.1 thousand | IT | 30 Jul 2008 |
| 00:50:C2:8C:7 | IAB | 4.1 thousand | IT | 30 Jul 2008 |
| 00:50:C2:9C:1 | IAB | 4.1 thousand | IT | 2 Nov 2008 |
| 00:50:C2:BE:1 | IAB | 4.1 thousand | IT | 17 Jan 2010 |
| 00:50:C2:D8:1 | IAB | 4.1 thousand | IT | 30 Nov 2010 |
| 00:50:C2:E5:0 | IAB | 4.1 thousand | IT | 7 Aug 2011 |
| 00:50:C2:F7:9 | IAB | 4.1 thousand | IT | 22 Apr 2012 |
| DC:4A:9E:6 | MA-M | 1 million | IT | 11 Sep 2020 |
| 40:D8:55:07:1 | IAB | 4.1 thousand | IT | 23 Dec 2012 |
| 40:D8:55:13:3 | IAB | 4.1 thousand | IT | 14 Jul 2013 |
| 70:B3:D5:0D:6 | MA-S | 4.1 thousand | IT | 23 Mar 2014 |
| 70:B3:D5:2C:A | MA-S | 4.1 thousand | IT | 17 Dec 2017 |
| 70:B3:D5:2F:6 | MA-S | 4.1 thousand | IT | 28 Jun 2015 |
| 70:B3:D5:32:3 | MA-S | 4.1 thousand | IT | 18 May 2014 |
| 70:B3:D5:41:2 | MA-S | 4.1 thousand | IT | 3 Aug 2014 |
| 70:B3:D5:48:B | MA-S | 4.1 thousand | IT | 13 Oct 2019 |
| 70:B3:D5:5C:4 | MA-S | 4.1 thousand | IT | 17 Jul 2016 |
| 70:B3:D5:82:5 | MA-S | 4.1 thousand | IT | 4 Dec 2016 |
| 70:B3:D5:88:1 | MA-S | 4.1 thousand | IT | 10 Apr 2016 |
| 70:B3:D5:8A:A | MA-S | 4.1 thousand | IT | 1 Jul 2019 |
| 70:B3:D5:8F:3 | MA-S | 4.1 thousand | IT | 21 Dec 2014 |
| 70:B3:D5:93:7 | MA-S | 4.1 thousand | IT | 8 Jul 2018 |
| 70:B3:D5:96:7 | MA-S | 4.1 thousand | IT | 2 Apr 2017 |
| 70:B3:D5:AC:B | MA-S | 4.1 thousand | IT | 27 May 2018 |
| 70:B3:D5:AF:4 | MA-S | 4.1 thousand | IT | 21 Feb 2016 |
| 70:B3:D5:B2:1 | MA-S | 4.1 thousand | IT | 16 Jul 2017 |
| 70:B3:D5:C7:F | MA-S | 4.1 thousand | IT | 1 Nov 2015 |
| 70:B3:D5:EC:5 | MA-S | 4.1 thousand | IT | 25 Jul 2019 |
| 70:B3:D5:EE:F | MA-S | 4.1 thousand | IT | 11 Mar 2018 |
Every block registered to TATTILE SRL in the IEEE registries, complete. Free-text search also matches former owners.