That's interesting CB. My new EASA licence has "Night" listed on the Ratings Held page. On the JAR one ISTR that it wasn't mentioned at all, as having a Night Rating (or Qualification then) was a prerequisite of either the CPL or IR (Can't remember which).
I sometimes think that certain sections of the CAA must have a set of rotating answers to various questions, which change depending on the day of the week you happen to call!