HUMAN NAME · NOT ON THE REGISTRY

Delta

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. Delta, as recorded
Sex	Female
2025 rank	2,337
2025 number	78
Peak year	1904
Peak rank	730
Years present	142 of 146
Dog licences, New York	69
Pet licences, Seattle	4

Statement of record

Delta was given to 78 girls in 2025, ranking 2,337th for the year. It peaked in 1904, when it ranked 730th and went to 23 babies. It has appeared in 142 of the 146 years on record. It has fallen 632 places since 2020.

Figure 1. Popularity of a Name: Delta

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

36%

Basis: phonetics. One voiced obstruent, 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.