[dcminter]

"...the chances of being picked up by another craft within those seconds are two to the power of two-hundred-and-sixty-seven-thousand, seven-hundred-and-nine to one against. Which, by a staggering coincidence, was also the telephone number of an Islington flat, where Arthur once went to a very good party and met a very nice girl, whom he entirely failed to get off with." -- The Hitch-hikers Guide to the Galaxy, Douglas Adams

This one was, on a similar note and by a not so staggering coincidence, the phone number of friends of Adams who didn't mind getting oddball phonecalls (if I remember the lore from Don't Panic accurately).