Fiber optic connection is being installed - use existing multi-utility infrastructure?

In Berlin it's rather extreme. For cable information, there is a separate company through which all network operators provide their documents, but only upon request. Depending on the provider, this can also be chargeable. In any case, the answers to my inquiries were all limited to public street land. But that was not a problem because the saleswoman was able to tell us where the cables ran on the property.