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).
Andrew
Andrew is down from its peak but still widely used. All-time it's been given to 1,334,415 U.S. babies, the 140th most common name by sound today, peaking at 36,429 in 1987, with 4,503 in 2025.
Andrew has no common alternate spellings by sound.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).