Heritage archive · 1930–1992

Preserving the memory of the Telegraph and Telephone Authority

A collaborative project to map the buildings, gather the archives and tell the story of the RTT.

1135

buildings logged

9

testimonies gathered

102

archive photos

3 %

sites documented

Heritage selection

Featured buildings

Telephone exchanges, workshops and regional offices across the country.

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Recent activity

Latest changes

Building pages recently created or enriched since the initial import.

Antenne Sivry — Sivry Page updated  by admin 17.07.2026 Antenne Sivry — Sivry New photo  by Vincent 17.07.2026 Antenne Sivry — Sivry Page created  by Vincent 17.07.2026 Telephone exchange — Meerlaan — Zottegem Page updated  by admin 17.07.2026 Telephone exchange — Rue Du Commerce — Sivry-Rance New photo  by Vincent 17.07.2026 Telephone exchange — Chee De Chimay — Beaumont New photo  by Vincent 17.07.2026 Telephone exchange — Pl Du Belvedere — Beaumont New photo  by Vincent 17.07.2026 Telephone exchange — Grand'Place — Thuin New photo  by Vincent 17.07.2026 Telephone exchange — Rue Landelies — Montigny-Le-Tilleul New photo  by Vincent 17.07.2026 Telephone exchange — Chaussée de Namur Walhain — Walhain Page updated  by admin 17.07.2026

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Timeline

A history in a few dates

From the creation of the Authority in 1930 to its transformation into Belgacom.

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Did you work at the RTT?

Your memories, photos and documents are invaluable. Help us complete the archive.