In texting, "143" is a numerical code that represents the phrase "I love you."
This code gained popularity, especially during the pager era of the 1990s, as a concise way to express affection. The numbers correspond to the number of letters in each word:
- 1 = I
- 4 = Love
- 3 = You
Therefore, texting "143" is a shorthand way of saying "I love you".