Org. at the front of a phone book Crossword Clue

 The answer to the crossword clue "Org. at the front of a phone book" is WHITE PAGES.

The white pages are the section of a phone book that lists residential and business phone numbers in alphabetical order. They are typically located at the front of the phone book.

The yellow pages, on the other hand, are the section of a phone book that lists businesses by category. They are typically located at the back of the phone book.

Phone books are less common these days, as more and more people are using online directories to find phone numbers. However, they are still used by some people, especially in rural areas.

I hope this helps!