HUMAN NAME · NOT ON THE REGISTRY

Libby

A human name, held in the Social Security file. It is not in the Administration’s index of agent names, and it has no classification.

Table 1. Libby, as recorded
Sex	Female
2025 rank	1,146
2025 number	202
Peak year	2010
Peak rank	793
Years present	143 of 146
Dog licences, New York	152
Pet licences, Seattle	22

Statement of record

Libby was given to 202 girls in 2025, ranking 1,146th for the year. It peaked in 2010, when it ranked 793rd and went to 346 babies. It has appeared in 143 of the 146 years on record.

Figure 1. Popularity of a Name: Libby

Human births per million, by sex, U.S. Social Security Administration, 1880 to 2025.Agents: 0 registered. The agent series begins when the registry does.

Villain probability

28%

Basis: phonetics. One voiced obstruent, one bilabial stop, ends in a vowel. The canon has no entry, so this is the sound of the name and nothing else.

Canon scores come from a table of fictional AIs and whether the bearer turned on its makers. Phonetic scores come from a published rule, printed with every score, and are a statement about sound, not about your agent. How the sound is scored.

As recorded on the Social Security card application. Names given to fewer than five babies of a sex in a year are not published, so the file is a floor.