What are the 3 settings of the enormous radio?

Jim and Irene Westcott live on the 12th floor of an apartment building near Sutton Place, and this is where the story takes place. Though the city where Sutton Place is located is not mentioned in the story, one can assume that the reference is to Sutton Place in New York City, as many of John Cheever's stories were set in New York, (the story itself appeared in the New Yorker).
Other settings are mentioned in the story, but no events take place there. The story mentions that the Westcotts "hoped some day to live in Westchester" and that Jim still "dressed in the kind of clothes his class had worn at Andover." When the children come home, we are told that Mrs. Westcott, "took them to the Park."
Through the radio, the couple hears conversations from people in other apartments in the building. They hear conversations from apartment 17B, 18C, and 16C.
We are also told that the Westcott's walked to meet some friends from the neighborhood for dinner, but we are not told where they dined.