| Organization | Blocks | Addresses | First registered |
|---|---|---|---|
| Vantiva Technologies Belgium | 12 | 201 million | 1 Apr 2011 |
| Thomson Telecom Belgium | 9 | 151 million | 8 Sep 2000 |
| EVS Broadcast Equipment | 2 | 33.6 million | 8 Sep 2000 |
| Sparnex n.v. | 2 | 33.6 million | 13 Sep 2023 |
| DINEC International | 2 | 16.8 million | 25 Sep 2007 |
| LUMINEX Lighting Control Equipment | 2 | 16.8 million | 2 Nov 2008 |
| Proximus | 2 | 16.8 million | 18 Dec 2016 |
| ABB n.v. Power Quality Products | 1 | 16.8 million | 24 Apr 2010 |
| ADTECH | 1 | 16.8 million | 8 Sep 2000 |
| Alcatel Bell Space N.V. | 1 | 16.8 million | 1 Feb 2004 |
| Alcatel Microelectronics | 1 | 16.8 million | 14 Dec 2001 |
| AnB Securite s.a. | 1 | 16.8 million | 24 Dec 2009 |
| ANERMA | 1 | 16.8 million | 22 Apr 1998 |
| Automatic Systems | 1 | 16.8 million | 15 Feb 2013 |
| Banksys | 1 | 16.8 million | 24 Oct 2001 |
| Barco NV | 1 | 16.8 million | 4 Dec 2000 |
| Barco Projection Systems NV | 1 | 16.8 million | 13 Apr 2003 |
| BARCONET N.V. | 1 | 16.8 million | 8 Sep 2000 |
| Belgian Monitoring Systems bvba | 1 | 16.8 million | 19 Apr 2009 |
| Blyott NV | 1 | 16.8 million | 2 Apr 2023 |
| BVBA DPTechnics | 1 | 16.8 million | 23 Nov 2019 |
| CABLE PRINT | 1 | 16.8 million | 8 Sep 2000 |
| Camco Technologies NV | 1 | 16.8 million | 27 Jun 2014 |
| Cellink | 1 | 16.8 million | 23 Jan 2004 |
| CEN | 1 | 16.8 million | 29 Apr 2021 |
| CMC | 1 | 16.8 million | 7 May 2011 |
| CONSTELL8 NV | 1 | 16.8 million | 27 Aug 2021 |
| Daikin Europe NV | 1 | 16.8 million | 17 Sep 2024 |
| DAPHNE | 1 | 16.8 million | 8 Sep 2000 |
| DATAX NV | 1 | 16.8 million | 22 Apr 1998 |
| DELCOMp | 1 | 16.8 million | 17 Mar 2004 |
| DTI | 1 | 16.8 million | 18 Jul 2009 |
| E.D.&A. | 1 | 16.8 million | 8 Sep 2000 |
| EACEM | 1 | 16.8 million | 8 Sep 2000 |
| EnergyICT | 1 | 16.8 million | 2 Nov 2008 |
| Essec | 1 | 16.8 million | 5 Dec 2009 |
| ESSENSIUM NV | 1 | 16.8 million | 7 Jun 2009 |
| Fasttel - Smart Doorphones | 1 | 16.8 million | 23 Nov 2008 |
| FillFactory NV | 1 | 16.8 million | 29 Mar 2002 |
| GreenPeak Technologies | 1 | 16.8 million | 4 Aug 2005 |
| Heraeus Electro-Nite International N.V. | 1 | 16.8 million | 23 Jul 2003 |
| IDCS N.V. | 1 | 16.8 million | 14 Apr 2005 |
| iNEWiT NV | 1 | 16.8 million | 13 May 2007 |
| Intellect International NV | 1 | 16.8 million | 7 Mar 2007 |
| Intersoft Electronics | 1 | 16.8 million | 8 Sep 2000 |
| IPTE | 1 | 16.8 million | 25 Sep 2007 |
| IPTrade S.A. | 1 | 16.8 million | 21 Apr 2006 |
| ISE Europe SPRL | 1 | 16.8 million | 14 Apr 2011 |
| LOGIPLUS | 1 | 16.8 million | 18 Jun 2008 |
| Lux Lumen | 1 | 16.8 million | 8 Oct 2008 |
| MACKIE Engineering Services Belgium BVBA | 1 | 16.8 million | 7 Feb 2003 |
| Metavector Technologies | 1 | 16.8 million | 4 Jun 2001 |
| MICRO-MATIC RESEARCH | 1 | 16.8 million | 22 Apr 1998 |
| Mitra Energy & Infrastructure | 1 | 16.8 million | 18 Aug 2007 |
| Muuselabs NV/SA | 1 | 16.8 million | 29 Aug 2017 |
| My Social Stuff | 1 | 16.8 million | 4 Jul 2012 |
| N.V. DZINE | 1 | 16.8 million | 8 Sep 2000 |
| N.V. PHILIPS INDUSTRIAL ACTIVITIES | 1 | 16.8 million | 8 Sep 2000 |
| Nanomegas | 1 | 16.8 million | 8 Jul 2014 |
| Newtec | 1 | 16.8 million | 4 Jun 2001 |
| Niko NV | 1 | 16.8 million | 25 Apr 2004 |
| Nokia Bell N.V. | 1 | 16.8 million | 3 Sep 2006 |
| NV ADB TTV Technologies SA | 1 | 16.8 million | 2 Mar 2003 |
| NV Michel Van de Wiele | 1 | 16.8 million | 29 Nov 2006 |
| One | 1 | 16.8 million | 13 Jan 2013 |
| Option International N.V. | 1 | 16.8 million | 8 Apr 2003 |
| OTN Systems N.V. | 1 | 16.8 million | 13 Feb 2010 |
| Picanol N.V. | 1 | 16.8 million | 14 Dec 2001 |
| Propulsion systems | 1 | 16.8 million | 6 Mar 2020 |
| PSS Belgium N.V. | 1 | 16.8 million | 25 Nov 2009 |
| Racktivity | 1 | 16.8 million | 1 Sep 2009 |
| SCHREDER | 1 | 16.8 million | 4 Jul 2018 |
| ScioTeq bvba | 1 | 16.8 million | 1 Jan 2020 |
| Siemens NV (Belgium) | 1 | 16.8 million | 15 Apr 2004 |
| Smappee NV | 1 | 16.8 million | 25 Aug 2023 |
| Soenen Controls N.V. | 1 | 16.8 million | 2 Sep 2004 |
| SoundTalks NV | 1 | 16.8 million | 13 Feb 2019 |
| Techno Trade s.a | 1 | 16.8 million | 24 Oct 2001 |
| Televic N.V. | 1 | 16.8 million | 8 Sep 2003 |
| TELINDUS DISTRIBUTION | 1 | 16.8 million | 22 Apr 1998 |
| TP Vision Belgium N.V. - innovation site Brugge | 1 | 16.8 million | 7 Aug 2010 |
| TP Vision Belgium NV | 1 | 16.8 million | 24 Nov 2016 |
| Traficon N.V. | 1 | 16.8 million | 4 Jun 2001 |
| Transics | 1 | 16.8 million | 30 May 2013 |
| Trump s.a. | 1 | 16.8 million | 1 Apr 2010 |
| Unitron nv | 1 | 16.8 million | 23 Nov 2008 |
| VSK ELECTRONICS | 1 | 16.8 million | 8 Sep 2000 |
| XenICs nv | 1 | 16.8 million | 7 Mar 2007 |
| XLN-t | 1 | 16.8 million | 20 Nov 2007 |
| Zappware | 1 | 16.8 million | 22 Jan 2015 |
| Zetes Technologies | 1 | 16.8 million | 8 Sep 2000 |
| Synamedia | 2 | 2.1 million | 15 Mar 2019 |
| Xemex NV | 4 | 1.1 million | 10 Jun 2012 |
| Cyanview | 2 | 1.1 million | 5 Nov 2017 |
| DELTACAST.TV | 2 | 1.1 million | 15 Apr 2012 |
| Secury360 | 2 | 1.1 million | 29 May 2024 |
| Septentrio NV | 2 | 1.1 million | 4 Sep 2016 |
| AED Distribution | 1 | 1 million | 7 Sep 2019 |
| Airprotec | 1 | 1 million | 28 May 2017 |
| AllThingsTalk | 1 | 1 million | 25 Sep 2015 |
| Atlas Copco | 1 | 1 million | 25 Jul 2024 |
| Basalte BVBA | 1 | 1 million | 1 Jul 2019 |
| Bausch Datacom NV/SA | 1 | 1 million | 5 Mar 2017 |
| bcheck NV | 1 | 1 million | 16 Oct 2019 |
| BEGLEC | 1 | 1 million | 22 Jul 2018 |
| Bureau Electronique Appliquee | 1 | 1 million | 12 Feb 2017 |
| EFit partners | 1 | 1 million | 5 Dec 2023 |
| elecgator bvba | 1 | 1 million | 23 Mar 2021 |
| Enovates NV | 1 | 1 million | 4 Nov 2025 |
| Genitek Engineering sprl | 1 | 1 million | 26 Aug 2020 |
| Grammer EiA Electronics nv | 1 | 1 million | 16 Oct 2015 |
| Impact Distribution | 1 | 1 million | 3 Dec 2017 |
| Melexis Technologies NV | 1 | 1 million | 19 Aug 2021 |
| Ontex BV | 1 | 1 million | 6 Aug 2020 |
| Petersime | 1 | 1 million | 23 May 2019 |
| Pozyx NV | 1 | 1 million | 19 Aug 2018 |
| Renson NV | 1 | 1 million | 2 Oct 2026 |
| Resus Industries | 1 | 1 million | 16 Oct 2015 |
| Reynaers Aluminium | 1 | 1 million | 26 Feb 2017 |
| SEE Telecom | 1 | 1 million | 17 Jun 2026 |
| Summa nv | 1 | 1 million | 29 May 2019 |
| TELETASK BELGIUM | 1 | 1 million | 30 Jan 2019 |
| (UN)MANNED | 1 | 1 million | 19 Mar 2019 |
| Viloc | 1 | 1 million | 4 Dec 2016 |
| XPR Group | 1 | 1 million | 29 Jan 2019 |
| BELIK S.P.R.L. | 3 | 12.3 thousand | 30 Jul 2008 |
| Clock-O-Matic | 3 | 12.3 thousand | 16 Mar 2014 |
| GILLAM-FEI S.A. | 3 | 12.3 thousand | 30 Jul 2008 |
| SENSO2ME | 3 | 12.3 thousand | 3 Apr 2016 |
| SENSO2ME NV | 2 | 8.2 thousand | 20 Oct 2023 |
| TELETASK | 2 | 8.2 thousand | 30 Jul 2008 |
| TWIN DEVELOPMENT | 2 | 8.2 thousand | 20 Sep 2015 |
| 2-Observe | 1 | 4.1 thousand | 10 Jan 2016 |
| Acunia N.V. | 1 | 4.1 thousand | 30 Jul 2008 |
| AE Van de Vliet BVBA | 1 | 4.1 thousand | 10 Jul 2016 |
| AI-BLOX | 1 | 4.1 thousand | 21 Oct 2022 |
| Aidhom | 1 | 4.1 thousand | 28 Oct 2025 |
| allora Factory BVBA | 1 | 4.1 thousand | 21 Feb 2016 |
| Aloxy | 1 | 4.1 thousand | 25 Jul 2019 |
| ALPHATRONICS nv | 1 | 4.1 thousand | 30 Jul 2008 |
| Altaneos | 1 | 4.1 thousand | 31 Jan 2019 |
| Apex NV | 1 | 4.1 thousand | 10 Oct 2010 |
| B.E.A. sa | 1 | 4.1 thousand | 22 Feb 2015 |
| Bascules Robbe nv | 1 | 4.1 thousand | 17 Feb 2013 |
| Byte Paradigm | 1 | 4.1 thousand | 30 Jul 2008 |
| Cursor Systems NV | 1 | 4.1 thousand | 19 Apr 2019 |
| dotOcean | 1 | 4.1 thousand | 19 Aug 2012 |
| E-S-Tel | 1 | 4.1 thousand | 28 Feb 2024 |
| EDGX bv | 1 | 4.1 thousand | 5 Dec 2025 |
| ELECTRONIC SYSTEMS DESIGN SPRL | 1 | 4.1 thousand | 4 Sep 2016 |
| Eloy Water | 1 | 4.1 thousand | 3 Jul 2021 |
| Energy ICT | 1 | 4.1 thousand | 30 Jul 2008 |
| ETAP NV | 1 | 4.1 thousand | 30 Jul 2008 |
| EURESYS S.A. | 1 | 4.1 thousand | 31 Mar 2013 |
| EXYS bvba | 1 | 4.1 thousand | 30 Jul 2008 |
| IMEXHIGHWAY cvba | 1 | 4.1 thousand | 30 Jul 2008 |
| KONAX BV | 1 | 4.1 thousand | 4 Jun 2026 |
| Lieron BVBA | 1 | 4.1 thousand | 24 Aug 2014 |
| Magics Technologies | 1 | 4.1 thousand | 30 Mar 2023 |
| Meucci Solutions | 1 | 4.1 thousand | 30 Jul 2008 |
| Micromega Dynamics SA | 1 | 4.1 thousand | 24 Nov 2013 |
| New Standard Engineering NV | 1 | 4.1 thousand | 30 Jul 2008 |
| Nexans Cabling Solutions | 1 | 4.1 thousand | 3 May 2009 |
| NV BEKAERT SA | 1 | 4.1 thousand | 19 Mar 2024 |
| P3LAB | 1 | 4.1 thousand | 19 Feb 2025 |
| S-SYS | 1 | 4.1 thousand | 29 Mar 2009 |
| Septentrio nv/sa | 1 | 4.1 thousand | 30 Jul 2008 |
| Silex Inside | 1 | 4.1 thousand | 14 Jan 2018 |
| SmartNodes | 1 | 4.1 thousand | 29 Jan 2017 |
| STREGA | 1 | 4.1 thousand | 25 Mar 2018 |
| Tempus Fugit Consoles bvba | 1 | 4.1 thousand | 15 Mar 2015 |
| Thales Belgium | 1 | 4.1 thousand | 15 Apr 2021 |
| The Signalling Company | 1 | 4.1 thousand | 19 Dec 2023 |
| TriLED | 1 | 4.1 thousand | 30 Aug 2015 |
| TWIN DEVELOPMENT S.A. | 1 | 4.1 thousand | 30 Jul 2008 |
| White2net srl | 1 | 4.1 thousand | 20 Dec 2022 |
Every organization with blocks registered in Belgium, sorted by total address space.