番ばん号ごう帳ちょう

noun

number directory; book of numbers

A physical or digital directory listing numbers, most commonly telephone numbers. Often used in contexts like phone books or contact lists.

• 古ふるい番ばん号ごう帳ちょうから友とも達だちの電でん話わ番ばん号ごうを探さがした。

  I looked up a friend's phone number in an old number directory.