How to read the band →
Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Ellis
Ellis has been climbing in recent years. All-time it's been given to 57,731 U.S. babies, the 455th most common name by sound today, peaking at 1,832 in 2025, with 1,832 in 2025.
Ellis has no common alternate spellings by sound.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).