Is the telephone number required by the sales company to distribute leaflets a trade secret?

This is a trade secret.

If customer information is kept secret by the company, not known to the public, and can bring economic benefits to the company, it is a trade secret.

According to the provisions of China's Anti-Unfair Competition Law, commercial secrets refer to technical and commercial information that is not known to the public, can bring economic benefits to the obligee, and is practical and kept secret by the obligee.

Therefore, business secrets include two parts: technical information and business information. Such as management methods, production and marketing strategies, customer lists, supply information and other business information; Production formula, process flow, technical know-how, design drawings and other technical data.