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).
Caleb
Caleb has been easing down from its peak but is still widely used. All-time it's been given to 414,286 U.S. babies, the 77th most common name by sound today, peaking at 15,189 in 2002, with 6,391 in 2025.
By sound, Caleb also includes the spellings Kaleb, Kayleb.
Rising