from digital spy:
The socialite is annoyed that Hilton has moved next door to her in Glendale, California, because she doesn't welcome the press attention.
"Nicole moved out there to get away from the paparazzi," a source told the New York Post.
"But when Paris calls them they come to her quiet street and disrupt everything. She's getting a little fed up."
Richie lives with Good Charlotte rocker Joel Madden, while Hilton is currently romancing Madden's brother and neighbour Benji.