Crossword Genius

Numerical prefixes (4,5)


I believe the answer is:

area codes

'numerical prefixes' is the definition.
(I've seen this in another clue)

This is all the clue.

(Another definition for area codes that I've seen is " Phone numbers identifying call destinations".)

I've seen this clue in the Wall Street Journal.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.