explicit in "State of the Art":

It was about a week later, when I was due to go back on-planet, to Berlin, when the ship wanted to talk to me again. Things were going on as usual; the Arbitrary spent its time making detailed maps of everything within sight and without, dodging American and Soviet satellites and manufacturing and then sending down to the planet hundreds upon thousands of bugs to watch printing works and magazine stalls and libraries, to scan museums, workshops, studios and shops, to look into windows, gardens and forests, and to track buses, trains, cars, seaships and planes. Meanwhile its effectors, and those on its main satellites, probed every computer, monitored every landline, tapped every microwave link, and listened to every radio transmission on Earth.