The most common and most likely answer to this crossword clue is the 3 letter word EXT which also is the latest solution we found used in CrossSynergy in 2000.
Added telephone line (abbr) crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| EXT | 100 % | 3 | 
Words with a meaning similar to the clue: Added telephone line (abbr)
These words may or may not be a possible solution to this crosswords clue.- extension
 - party line
 - tap
 - wiretap
 - telephone extension
 - extension phone
 - leading
 - leafing
 - loading
 - hook
 - cord
 - hold on
 
Crossword Answer definitions
EXT noun- Exterior (describing the location of a shot in a film script, etc.)
 - Extension
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution