| Answer | Crossword Clue |
|---|---|
| AREACODEMAP | Feature in a telephone directory |
| LASTNAME | Part alphabetized in a telephone directory |
| listed | (of a telephone number or telephone subscriber) represented in a telephone directory |
| unlisted | (of a person or telephone number) Not listed in a telephone directory or available through directory assistance, at the wish of the subscriber |
| callbacks | A security feature used by systems accessed by telephone, in which a remote user must log on using a previously registered phone number, to which the system then places a return call |
| ZEDS | Last section of a London telephone directory |
