| Organization | Blocks | Addresses | First registered |
|---|---|---|---|
| Famar Fueguina S.A. | 3 | 18.9 million | 25 Sep 2006 |
| ELECTRO CHANCE SRL | 1 | 16.8 million | 25 Sep 2006 |
| EXEMYS SRL | 1 | 16.8 million | 12 Dec 2002 |
| EXO S.A. | 1 | 16.8 million | 17 Jun 2016 |
| IEA S.R.L. | 1 | 16.8 million | 14 Jul 2011 |
| Industria Fueguina de Relojería Electrónica s.a. | 1 | 16.8 million | 11 Nov 2017 |
| Instituto Nacional de Tecnología Industrial | 1 | 16.8 million | 8 Apr 2015 |
| NOBLEX SA | 1 | 16.8 million | 23 Jun 2012 |
| Videoswitch | 1 | 16.8 million | 23 Apr 2013 |
| BCD SRL | 1 | 1 million | 5 Sep 2025 |
| Intertecno SRL "NISUTA" | 1 | 1 million | 20 Nov 2016 |
| Macronet s.r.l. | 2 | 8.2 thousand | 30 Jul 2008 |
| Control LAN S.A. | 1 | 4.1 thousand | 30 Jul 2008 |
| DELSAT GROUP S.A. | 1 | 4.1 thousand | 30 Jul 2008 |
| General Industries Argentina | 1 | 4.1 thousand | 30 Jul 2008 |
| Nexus Electric S.A. | 1 | 4.1 thousand | 11 Nov 2020 |
| SERVAIND SA. | 1 | 4.1 thousand | 30 Jul 2008 |
| Terragene | 1 | 4.1 thousand | 24 Feb 2026 |
| Terragene S.A | 1 | 4.1 thousand | 22 Jan 2017 |
| Toptechnology SRL | 1 | 4.1 thousand | 27 Dec 2009 |
Every organization with blocks registered in Argentina, sorted by total address space.