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).
Alyssa
Alyssa is now well below its former popularity. All-time it's been given to 371,693 U.S. babies, the 607th most common name by sound today, peaking at 15,476 in 1999, with 887 in 2025.
By sound, Alyssa also includes the spellings Alissa, Elissa.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).