Completely missed that on previous watches of the film. 27b-6 is a reference to George Orwell's address; Apartment 6, 27B Canonbury Square, Islington London.
It's also the website of David Thorne, who is always amusing if you're looking for some vicious sarcasm: http://www.27bslash6.com/missy.html
It's also the website of David Thorne, who is always amusing if you're looking for some vicious sarcasm: http://www.27bslash6.com/missy.html