Under Nicolas the 4th of Neufville de Villeroy (who at the time was one of the most important ministers of the Kingdom of France) the building was elaborated, progressively becoming a center for literature.

The building is one of the few remaining structures of the former aristocratic southwest Les Halles that during the late 16th and early 17th centuries became integrated into a dense network of bourgeois and common houses.

After the French Revolution the story of the Pajot & Rouillé Post was forgotten in Paris, but it remained in the memory of the Thurn & Taxis family who did not want the same fate for their own postal empire.

During the time of the Halles de Paris the building was used to store food products and on the side of the rue des Déchargeurs was put into place a cremerie.

He showed him the old Postal mansion, the Hotel Villeroy Bourbon and told him about his ancestor Anselm Franz, 2nd Prince of Thurn and Taxis coming from Brussels and Frankfurt by horse.

The start was a small Phone Boutique located on 11 rue des Halles a few meters down the street (today Cremerie de Paris N°2).

The Boutique was helped by a few Thalers Maximilian Karl, 6th Prince of Thurn and Taxis had received 1867 in compensation for the nationalisation of the families Postal Company, Thurn-und-Taxis Post.

Among them many Tech pioneers which would have been difficult to meet, like the assistant of Jon Postel, inventor of the .com domain system, an astronaute that had been on the first flight to the Moon and several young people now in charge of major US Technology corporations.

The roots of the directory go back to the times the mansion was the "Hotel de la Poste" (1671 - 1738) a place in the history of the Pajot and Rouillé and the Thurn und Taxis families.

With the help of Aimée de Heeren who came to the internet cafe at the Hotel de Villeroy Bourbon every week and who had met Alexander Graham Bell, the inventor of the phone, when she was a young woman, the expression "whitepages" was registered in over 50 different countries, a process which was very complicated during the early years of the internet as a local address or other requirements were needed in many countries.

The white pages for France, Brazil, Germany, Italy, Poland, India, Mexico, Taiwan and 40 other countries are now edited from the Hôtel de Villeroy, giving the old Paris Postal Building a unique place in telecom history.

In 1993 it was acquired by the little Electrica for Sony Phone Store located on 11 rue des Halles (today petite Cremerie de Paris N°2).

Many notable brands have organised Pop Up Stores and Pop Up Cafes (located at the opposite restaurant Gladines / Cremerie de Paris N°3): Most expos and pop-up stores have been accompanied by TV commercials and video clips visible in the Phone Book of the World giving the Hotel de Villeroy an international touch.